ABSTRACT Protecting millions of workers from occupational hazards frequently involves the use of respirators, protective clothing, gloves, or other personal protective technologies (PPT). For some occupations, such as firefighting, the worker’s protective equipment is the only form of protection against life-threatening hazards, while for others, such as healthcare workers, PPT is one component in a series of protective controls.
In conjunction with a series of planned reviews of National Institute for Occupational Safety and Health (NIOSH) research programs, the Institute of Medicine (IOM) and the National Research Council (NRC) convened a committee of experts to review the NIOSH Personal Protective Technology Program (PPT Program) to evaluate the relevance of its work to improvements in occupational safety and health and the impact of its work in reducing workplace illnesses and injuries. Relevance was evaluated based on the priority of work carried out and the strength and plausibility of its association with improvements in workplace protection. Impact was evaluated based on contributions to intermediate and end outcomes linked to worker health and safety. The committee was also asked to assess the program’s targeting of new research areas, identify emerging issues in PPT, and provide recommendations for strengthening the program. In addition to reviewing the PPT research efforts, the committee’s task included evaluating the respirator certification program and appraising the policy and standards development efforts of the PPT Program.
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Summary
ABSTRACT Protecting millions of workers from occupational hazards fre-
quently involves the use of respirators, protective clothing, gloves, or other per-
sonal protective technologies (PPT). For some occupations, such as firefighting,
the worker’s protective equipment is the only form of protection against life-
threatening hazards, while for others, such as healthcare workers, PPT is one
component in a series of protective controls.
In conjunction with a series of planned reviews of National Institute for
Occupational Safety and Health (NIOSH) research programs, the Institute
of Medicine (IOM) and the National Research Council (NRC) convened a
committee of experts to review the NIOSH Personal Protective Technology
Program (PPT Program) to evaluate the relevance of its work to improve-
ments in occupational safety and health and the impact of its work in reduc-
ing workplace illnesses and injuries. Relevance was evaluated based on the
priority of work carried out and the strength and plausibility of its association
with improvements in workplace protection. Impact was evaluated based on
contributions to intermediate and end outcomes linked to worker health and
safety. The committee was also asked to assess the program’s targeting of new
research areas, identify emerging issues in PPT, and provide recommendations
for strengthening the program. In addition to reviewing the PPT research
efforts, the committee’s task included evaluating the respirator certification
program and appraising the policy and standards development efforts of the
PPT Program.
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Taking into account several important factors beyond the program’s con-
trol, the committee found that since 00 (the period covered by this review),
the PPT Program has made meaningful contributions to improving worker
health and safety. Using a five-point scoring scale (where 5 is highest), the
committee assigned the NIOSH PPT Program a score of 4 for relevance. This
score reflects the judgment that the PPT Program is working in priority areas
and is engaged in transferring its research to improved products and processes.
The committee also assigned the PPT Program a score of 4 for impact, indi-
cating that the program has made probable contributions to end outcomes
(improvements in worker health or safety) in addition to well-accepted inter-
mediate outcomes.
To enhance the relevance and impact of its work, the committee recom-
mends the development of a National PPT Program consistent with the origi-
nal congressional mandate that would foster the development of improved
protection for all workers through coordinated oversight of all PPT. The
committee also recommends that the PPT Program establish research centers
of excellence, enhance the respirator certification process, increase research
on the use and usability of PPT, and assess PPT use and effectiveness in the
workplace using a life-cycle approach.
OVERVIEW
M
aintaining the health and safety of workers in the United States and
globally is accomplished in part by reducing hazardous exposures through
the use of personal protective equipment. Personal protective technolo-
gies (PPT) include respirators worn by construction workers and miners to protect
against exposure to silica, dust, and hazardous gases; protective clothing, respirators,
and gloves worn by firefighters and mine rescue workers to avoid burns and smoke
inhalation; and respirators and protective clothing worn by healthcare workers to
prevent acquiring an infectious disease. An estimated 5 million workers are required
to wear respirators in 1.3 million U.S. workplaces. For some occupations, such as
firefighting, the worker’s protective equipment is the only form of protection against
life-threatening hazards; for other workers, PPT is a supplement to ventilation and
other environmental, engineering, or administrative hazard controls.
In the United States, federal responsibility for civilian worker PPT is integral to
the mission of the National Institute for Occupational Safety and Health (NIOSH).
This report examines the NIOSH Personal Protective Technology Program (PPT
Program) and specifically focuses on the relevance and impact of this program in
reducing hazardous exposures and improving worker health and safety.
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STUDY PROCESS
In September 2004, NIOSH requested that the National Academies conduct
evaluation reviews of specific NIOSH programs to assess the relevance and the im-
pact of the work of NIOSH in reducing workplace injury and illness. For consistency
across the set of evaluations, each evaluation review is using a methodology and
framework developed by the National Academies’ Committee to Review NIOSH
Research Programs. In July 2007 the Institute of Medicine and the Division on Earth
and Life Studies of the National Research Council formed the Committee to Review
the NIOSH Personal Protective Technology Program. The committee included
members with expertise in occupational health, emergency response, health care,
personal protective equipment manufacturing, employee organizations, respiratory
protection, dermal protection, injury protection, and program evaluation.
The committee was tasked with reviewing the NIOSH PPT Program and evalu-
ating the program’s relevance to and impact on occupational health and safety.
In addition to reviewing PPT-related research programs, the committee’s task
included evaluating the certification and the standards development efforts of the
PPT Program. Further, the committee was tasked with focusing its efforts on PPT
relevant to respiratory and dermal hazards (Box S-1) as NIOSH efforts relevant
to other types of PPT (e.g., hearing loss, fall prevention) are being addressed in
other National Academies’ reviews. The study committee was given the discretion
to determine the time period to be covered by the review and chose to focus its
evaluation from the inception of the NIOSH National Personal Protective Technol-
ogy Laboratory (NPPTL) in 2001 through 2007.
THE NIOSH PPT PROGRAM
Personal protective technologies are defined as the specialized clothing or
equipment worn by individuals for protection against health and safety hazards,
as well as the technical methods, processes, techniques, tools, and materials that
support their development, evaluation, and use. PPT encompasses personal pro-
tective equipment products such as respirators, gloves, protective eyewear, hearing
protection, and protective clothing but also includes facepieces, filters, guidance
documents, standards, and test procedures.
NIOSH’s PPT Program works to fulfill its mission through three major areas
of endeavor: (1) respirator certification as mandated in federal regulations; (2) re-
search focused on protection from respiratory, dermal, and injury hazards; and (3)
participation in standards setting and policy making. Workplaces regulated by the
Occupational Safety and Health Administration (OSHA) or the Mine Safety and
Health Administration (MSHA) in the United States with hazardous respiratory
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4
BOX S-1
PPT Program Strategic Goals and Objectives
Strategic Goal 1: Reduce Exposure to Inhalation Hazards
Objective 1. Ensure the integrity of the national inventory of respirators through the
implementation of a just-in-time respirator certification process.
Objective 2. Develop CBRN respirator standards to reduce exposure to CBRN threats.
Objective 3. Ensure the availability of mine emergency respirators for escape from mines.
Objective 4. Improve reliability and level of protection by developing criteria that influ-
ence personal protective equipment designs to better fit the range of facial
dimensions of respirator users in the U.S. workforce.
Objective 5. Quantify the impacts of various personal protective equipment on viral
transmission.
Objective 6. Evaluate the nanofiber-based fabrics and NIOSH-certified respirators for
respiratory protection against nanoparticles.
Objective 7. Develop and make available end-of-service-life indicator (ESLI) technologies
that reliably sense or model performance to ensure respirator users receive
effective respiratory protection.
Objective 8. Gather information on the use of respirators in the workplace to identify
research, intervention, and outreach needs.
Strategic Goal 2: Reduce Exposure to Dermal Hazards
Objective 1. Improve chemical-barrier protective clothing testing and use practices to
reduce worker exposure to chemical dermal hazards.
Objective 2. Improve emergency responder protective clothing to reduce exposure to
thermal, biological, and chemical dermal hazards.
Objective 3. Investigate physiological and ergonomic impact of protective ensembles on
individual wearers in affecting worker exposure to dermal hazards.
Strategic Goal 3: Reduce Exposure to Injury Hazards*
Objective 1. Develop and evaluate warning devices for fire services.
NOTE: CBRN = chemical, biological, radiological, and nuclear.
*The PPT Program has additional objectives under this strategic goal that are related to
hearing protection, protection from falls, and antivibration technologies. These objectives
are not the focus of this review; some aspects of these objectives have been discussed in
other National Academies’ reviews.
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exposures must meet federal requirements to provide their workers with NIOSH-
certified respirators.1 To achieve NIOSH certification, manufacturers submit respi-
rator products to NPPTL, where the products undergo a series of certification tests
depending on the type of respirator and its intended use. Products that successfully
meet the design, quality, and performance certification criteria are designated and
approved as NIOSH-certified respirators. Intramural research is conducted primar-
ily in the more than 20 laboratory facilities located in Bruceton, Pennsylvania, near
Pittsburgh. In addition, research is conducted through contracts with universities
and other partners. The NIOSH extramural research program is administered
through the NIOSH Office of Extramural Programs and is largely separate from the
intramural program. The PPT Program’s research portfolio is focused on respira-
tory research relevant to PPT, with a smaller but growing component of research
on protective clothing and other types of PPT. NIOSH’s work in PPT also involves
participating in the development of relevant regulatory standards and consensus
standards. Consensus standards for the manufacturing, performance, and testing of
PPT products are developed by national and international standards development
organizations. These organizations work through expert committees consisting of
representatives from government agencies, manufacturers, employers, academia,
and end users.
ASSESSMENT OF RELEVANCE
In considering the relevance of the PPT Program’s efforts, the committee
examined 12 of the program’s objectives across the three principal domains of
research, respirator certification, and policy and standards setting. The committee
took into account the major external factors, particularly the limited budget and
the regulatory mandate for respirator certification. Approximately one-third of the
PPT Program’s budget is designated for federally mandated respirator certification
testing. The PPT Program operates in a set of multiple, small, partly refurbished
laboratories dispersed over several acres. These facilities are inadequate for the
challenges of overseeing the development of state-of-the-art PPT that must protect
the health and safety of the nation’s workers.
The respirator certification program is a premier function of the PPT Pro-
gram. Since 2001, more than 1,600 respirators have been certified and substantive
progress is being made in meeting the congressional mandate of completing cer-
tification within 90 days. However, having a long-standing spotlight on respira-
tors, compounded by budget limitations, constrains efforts to address other types
1The Mine Safety and Health Administration (MSHA) is also involved in certifying certain mine
escape equipment, and the Department of Defense has criteria specific to PPT for the military
workforce.
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of PPT (e.g., protective clothing, eye protection). Recent efforts, particularly in
consensus standards setting, seem to be appropriately broadening the scope of the
PPT Program.
NIOSH is one of only a few federal agencies that has onsite certification test-
ing responsibilities and facilities. Because OSHA and MSHA require employers
to purchase only NIOSH-certified respirators, NIOSH certification is viewed by
manufacturers and employers as a business necessity. NIOSH certification regula-
tions are in use by other countries as a model or basis for their respirator certifica-
tion efforts. The PPT Program conducts a limited number of product audits and
conducts manufacturer site audits using both staff and external consultants. Efforts
to ensure the effectiveness of respirators would be strengthened through increased
resources that could be directed toward field testing and expedited revision of the
federal certification regulations.
The PPT Program has had well-documented success in its quick turnaround
in developing the chemical, biological, radiological, and nuclear (CBRN) federal
respirator standards. This effort involved extensive collaborative efforts with other
federal agencies, nonprofit organizations, manufacturers, and others. The PPT
Program is in the midst of updating regulations regarding the certification of mine
self-rescue respirators. The PPT Program has conducted relevant research on total
inward leakage, which is a major concern in respiratory protection, and on issues
focused on criteria for powered air-purifying respirator regulations. However, the
regulatory standards related to these issues are still in the initial stages of the rule-
making process, and expedited efforts are needed to move the process forward.
Consensus standards-setting activities are another priority area for the PPT
Program and one in which it has been active through the technical committees
that are highly relevant to the program’s work. Participation in the development of
ASTM (formerly, American Society for Testing and Materials) International, NFPA
(National Fire Protection Association), and ISO (International Organization for
Standardization) standards and test methods has been the primary mechanism for
the PPT Program’s productive engagement in standards designed to reduce hazard-
ous dermal exposures. PPT Program research has also contributed to test methods
and performance standards for protective gear.
The PPT Program is proactive in obtaining input from a range of stakehold-
ers through a series of public meetings and manufacturers’ meetings focused
on specific topics or proposed changes to the certification regulations. Website
and listserv capabilities are utilized for dissemination of invitations to upcoming
public meetings, user notices, the Certified Equipment List, guidelines, and other
key information. In the last few years, the PPT Program has become active in
collaborations with various federal agencies and other partners and has begun to
explore links with extramural researchers. As discussed in its recommendations,
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the committee urges a concentrated effort to bring the breadth of expertise in the
extramural research community to bear on intramural and other pertinent PPT
research questions.
The time frame for the committee’s review began with the inception of the
NPPTL in 2001. In this relatively short period of time, the program has initiated
a range of relevant research projects. Some of the projects are the result of oppor-
tunities driven by external factors and funding, while others have been initiated
by PPT Program investigators. Recent research initiatives have focused on PPT
for pandemic influenza, and others have focused on efforts to examine the as-yet
largely unknown implications of exposure to the products and by-products of
nanotechnology. In addition to research to support and improve the respirator
certification program (e.g., total inward leakage, anthropometrics), the committee
suggests that the PPT Program address research in priority areas, particularly those
for mining emergencies, dermal protection, and heat-related hazards. Limitations
in the research budget are a major impediment to further improvements in PPT
ensembles and in work that is needed across a range of occupations (e.g., agri-
culture, industry, construction, health care). While research has focused on engi-
neering aspects of PPT, one of the challenges to be addressed in the near future is
improving and ensuring usability. This will require particular emphasis on increas-
ing safety by improving the comfort, wearability, and individual and organizational
incentives needed to ensure that workers do in fact wear PPT.
On the basis of its review of the PPT Program’s work in research, certifica-
tion, and policy and standards setting, the committee has assigned the NIOSH
Personal Protective Technology Program a score of 4 for relevance (Box S-2). This
BOX S-2
Scoring Criteria for Relevance
5 = The program’s work is in high-priority subject areas, and NIOSH is significantly en-
gaged in appropriate transfer activities for completed projects or reported results.
4 = The program’s work is in priority subject areas, and NIOSH is engaged in appropriate
transfer activities for completed projects or reported results.
3 = The program’s work is in high-priority or priority subject areas, but NIOSH is not
engaged in appropriate transfer activities; or the focus is on lesser priorities, but
NIOSH is engaged in appropriate transfer activities.
2 = The program is focused on lesser priorities, and NIOSH is not engaged in or planning
some appropriate transfer activities.
1 = The program is not focused on priorities, and NIOSH is not engaged in transfer
activities.
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score reflects the judgment that the PPT Program is working in priority areas and
is engaged in transferring its research into improved products and processes. In
the judgment of the committee, the program, with additional resources and an
expanded focus, could further improve its relevance score by strengthening the
product and site audit programs; expediting revisions to the federal regulatory
standards; better harnessing the capabilities of the extramural research community;
and placing a stronger emphasis on comfort, wearability, and other human factors
that affect workers’ use of PPT.
ASSESSMENT OF IMPACT
NIOSH is nationally and internationally recognized for its respirator cer-
tification program. OSHA and MSHA require that the respirators used in U.S.
workplaces be NIOSH-certified. The PPT Program also took a leadership role in
developing and expediting federal regulatory standards for CBRN respirators. This
effort involved extensive collaboration with multiple federal agencies, manufactur-
ers, and professional associations. For example, OSHA and NIOSH collaboratively
developed a CBRN PPT Selection Matrix for Emergency Responders.
Impacts on reducing hazardous exposures or preventing illness or injury are
difficult to attribute directly to the work of a single federal agency. However, be-
cause the PPT Program certifies that respirators meet a number of rigorous, pre-
specified performance criteria, the committee felt justified in acknowledging that
positive end outcomes have occurred that are attributable to the PPT Program’s
role in respirator certification. For workers who have few other protections from
hazardous workplace exposures, such as firefighters, the value of effective PPT is
a daily reality. As noted above, successful mine escapes have occurred because the
miners had access to effective respirators that prevented exposure to lethal levels
of carbon monoxide. Having such equipment in place involves the collaborative
efforts of manufacturers, professional associations, employers, employees, unions,
state and federal agencies, and many others. However, the committee recognizes
the central and vital role that the PPT Program plays in this effort.
Important intermediate outcomes also appear to be the result of active partici-
pation by PPT Program staff members in consensus standards-development efforts.
The PPT Program has leveraged its limited resources well in its participation in na-
tional and international consensus standards organizations. Several recent ISO and
ASTM International standards have incorporated test methods developed through
PPT Program research. The PPT Program staff has also led or been instrumental
in research on a number of key issues, although, as in several other important
areas, budget restraints substantially limit the extent of research efforts. Work on
protection against viral transmission (particularly related to pandemic influenza)
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and on nanotechnology is in the early phase and has not yet received the resources
or had the opportunity to produce intermediate outcomes.
The committee believes that although great strides have been made in improv-
ing respirators, much could be done to address other types of PPT (e.g., protective
clothing, protective eyewear, gloves, hearing protection, hard hats, fall harnesses)
with additional resources. Additionally, the successful focus on improving PPT for
emergency responders now needs to be expanded to other occupations, including ag-
ricultural workers, construction workers, healthcare workers, and industrial workers,
where the public health impact is likely to be far more substantial. Work on protective
ensembles also holds great promise, and innovative approaches need to be developed
to provide seamless interfaces among different types and components of PPT.
The committee urges expedited efforts to revise federal certification regu-
lations, so that new technologies and testing methodologies can be utilized to
improve the efficacy of respirators and allow for innovation in the design and
function of this equipment. Similarly, there is much that should be done to improve
protective clothing, eyewear, gloves, and other types of PPT, contingent upon ad-
ditional resources.
On the basis of its review of the PPT Program’s work in research, respirator
certification, and policy and standards setting, the committee has assigned the
NIOSH Personal Protective Technology Program a score of 4 for impact. This
score, according to the scoring criteria outlined by the framework committee,
reflects the judgment that the PPT Program has made probable contributions to
end outcomes in addition to well-accepted intermediate outcomes (Box S-3). In the
judgment of the committee, the program could further improve its impact score
BOX S-3
Scoring Criteria for Impact
5 = The program has made major contribution(s) to worker health and safety on the basis
of end outcomes or well-accepted intermediate outcomes.
4 = The program has made some contributions to end outcomes or well-accepted inter-
mediate outcomes.
3 = The program’s activities are ongoing, and outputs are produced that are likely to
result in improvements in worker health and safety (with explanation of why not rated
higher). Well-accepted outcomes have not been recorded.
2 = The program’s activities are ongoing, and outputs are produced that may result in
new knowledge or technology, but only limited application is expected. Well-accepted
outcomes have not been recorded.
1 = Activities and outputs do not result in or are NOT likely to have any application.
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by applying the lessons learned in the development of CBRN respirator standards
to other types of PPT (e.g., protective clothing, protective eyewear, gloves) and
emphasizing development and testing of protective ensembles and other integrated
approaches to PPT.
EMERGING AREAS
In addition to examining the relevance and impact of the work of the NIOSH
PPT Program, the committee was asked to examine the process by which the pro-
gram identifies new research areas and to provide ideas on additional topics. The
committee recognizes the many inputs to the PPT Program’s process for establish-
ing research priorities. The PPT Program sets its research and other institutional
priorities through an ongoing strategic planning process that culminates in an
annual planning summit attended by the governance team comprised of key PPT
Program managers. Inputs to the planning process include the many public and
manufacturers’ meetings sponsored by the PPT Program that have recently been
expanded to focus on a broader range of PPT efforts including hearing loss and
fall prevention. The PPT Program has been very successful in engaging specific and
familiar stakeholder groups, including respirator manufacturers and the emergency
response community, and recognizes the need to expand into other work sec-
tors. The PPT Program has demonstrated its engagement in PPT policy develop-
ment through participation in consensus standards development committees and
through its interactions with other federal agencies.
The PPT Program’s process for identifying and addressing emerging areas
seems quite open and transparent, and the committee urges the program to con-
tinue in this manner as it reaches out to other workplace sectors. The PPT Program
would also benefit from further expertise in behavioral sciences and interdisciplin-
ary specialties, aimed principally at human factors. Given the ongoing challenges
of workers’ noncompliance with PPT use, it is paramount that NIOSH recognize
psychosocial, usability, comfort, and behavioral issues that profoundly modify the
relationship between PPT design and user compliance.
The committee was not given the task of conducting a comprehensive assess-
ment of all emerging issues in PPT, but it did identify several overarching consid-
erations pertinent to all types of PPT: new materials technologies, usability and
human factors, PPT ensembles and systems integration, enhancing a culture of
workplace safety, and training and professional education.
RECOMMENDATIONS
The NIOSH PPT Program has made effective use of its limited resources
and has moved the research, standards-setting, and certification agendas forward,
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largely with a focus on respirators. However, much still has not been done due to
serious budgetary constraints. The committee offers the following recommenda-
tions (Box S-4) with the goal of improving the ability of the NIOSH PPT Program
to broaden its scope and depth of responsibility in order to protect workers more
effectively from hazardous workplace exposures, illness, injuries, and disease.
BOX S-4
Summary of Report Recommendations
Recommendation 1: Implement and Sustain a Comprehensive
National Personal Protective Technology Program
NIOSH should work to ensure the implementation of the 2001 congressional mandate for a
comprehensive state-of-the-art federal program focused on personal protective technology.
A comprehensive program would build on the current NIOSH PPT Program and would bring
unified responsibility and oversight to all PPT-related activity at NIOSH.
Recommendation 2: Establish PPT Research Centers of
Excellence and Increase Extramural PPT Research
The PPT Program should establish and sustain extramural PPT centers of excellence and
work to increase other extramural research opportunities.
Recommendation 3: Enhance the Respirator Certification Process
The PPT Program should continue to improve the respirator certification process. The program
should expedite the revision of the respirator certification regulations, develop a mechanism
for registering the purchase of NIOSH-certified respirators, expand the product audit program,
monitor the site audit program, and disseminate respirator certification test result data.
Recommendation 4: Increase Research on the Use and Usability of PPT
The PPT Program should intensify its research directed at barriers to and facilitators of PPT
use by workers. Such research should examine human factors and ergonomics, as well as
individual behaviors and organizational behaviors, particularly workplace safety culture.
Recommendation 5: Assess PPT Use and Effectiveness in
the Workplace Using a Life-Cycle Approach
The PPT Program, in collaboration with relevant NIOSH divisions and other partners, should
oversee an ongoing surveillance and field testing program to assess PPT use and effective-
ness in the workplace. These efforts should emphasize a life-cycle approach by including
both pre-market and interval post-market testing of PPT and include data collection on issues
ranging from training to decontamination.
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Recommendation 1: Implement and Sustain a Comprehensive National
Personal Protective Technology Program
NIOSH should work to ensure the implementation of the 2001 congressional
mandate for a comprehensive state-of-the-art federal program focused on
personal protective technology. A comprehensive program would build on
the current NIOSH PPT Program and would bring unified responsibility
and oversight to all PPT-related activity at NIOSH. The National Personal
Protective Technology Program should
• Oversee, coordinate, and where appropriate, conduct research across
all types of occupational PPT and across all relevant occupations and
workplaces;
• Participate in policy development and standards setting across all
types of occupational PPT;
• Oversee all PPT certification in order to ensure a minimum uni-
form standard of protection and wearability. The National Program
should collaborate with other relevant government agencies, private-
sector organizations, and not-for-profit organizations to conduct an
assessment of the certification mechanisms needed to ensure the
efficacy of all types of PPT; and
• Promote the development, standards setting, and certification of
effectively integrated PPT components and ensembles in which mul-
tiple types of PPT (e.g., eye protection, hearing protection, respira-
tors) can be effectively and seamlessly worn together.
The committee was struck by the discordance between the congressional man-
date2 to establish the National Personal Protective Technology Laboratory (NPPTL)
in 2001 and the challenges faced by the current PPT Program, which focuses almost
solely on respiratory PPT because of limited resources. If NIOSH is to respond fully
to its 2001 congressional directive to develop and test state-of-the-art national PPT
needs (respirators, protective clothing, gloves, hearing protection, eye protection,
and other types of PPT) across all relevant work sectors, then a more comprehen-
sive approach is needed.
2Senate Report 106-293 stated “It has been brought to the Committee’s attention the need for
design, testing and state-of-the-art equipment for this nation’s 50 million miners, firefighters, health-
care, agricultural and industrial workers. . . . The Committee encourages NIOSH to carry out re-
search, testing and related activities aimed at protecting workers, who respond to public health needs
in the event of a terrorist incident. The Committee encourages CDC [the Centers for Disease Control
and Prevention] to organize and implement a national personal protective equipment laboratory.”
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As PPT becomes increasingly complex, integration of its many components re-
quires scrupulously coordinated development of interfaces and ensembles that are
designed, standardized, and certified under the oversight of a single entity within
NIOSH, dedicated solely to PPT in the workplace. To promote worker safety by in-
tegrating various types of protective equipment requires placing the responsibility
for all PPT efforts at NIOSH under a single entity that has the responsibility and
the requisite resources to oversee the broad array of PPT and to lead the efforts to
provide workers with improved and innovative protective equipment.
In 2005, NIOSH took a significant first step toward coordinating PPT-related
efforts across the institute by establishing the PPT Program and developing a
matrix approach to management. However, the committee is concerned that the
current matrix structure of PPT efforts at NIOSH is too ambiguously configured
to serve the long-term needs and flexible goals of a comprehensive, coordinated
national PPT endeavor. Although designated as a program in name, the directors
of the current PPT Program have limited budgetary authority and management
responsibility for PPT research and other efforts outside of NPPTL. As a result of
the lack of a single authority there are major gaps in integration, coordination, and
consolidation of many types of PPT. The current matrix approach, while a good
first step, does not bring the full depth and range of NIOSH expertise to bear on
moving forward in improving and coordinating PPT at the national level.
The committee believes that a meaningfully integrated approach to improving
all types of occupational PPT would logically require consolidation of the oversight
responsibilities for PPT efforts at NIOSH. The committee’s emphasis in response
to its charge was on proposing a general strategy intended to optimize the wealth
of relevant expertise at NIOSH in order to meet the new challenges of develop-
ing fully integrated and coordinated protective ensembles and technologies for
worker protection. Approaches could range from maintaining current laboratory
and research facilities with changes in reporting and budgetary authority to more
major organizational changes. Carrying out the original congressional intent of
an effort focused on “the design, testing, and state-of-the-art [personal protective]
equipment for this nation’s . . . workers” (Senate Report 106-293) will necessitate a
commitment to a broad scope of work and collaborative efforts.
Recommendation 2: Establish PPT Research Centers of Excellence and
Increase Extramural PPT Research
The PPT Program should establish and sustain extramural PPT centers of
excellence and work to increase other extramural research opportunities.
The PPT Program should
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Develop and support research centers of excellence that work closely
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with the NIOSH intramural research program to improve PPT, in-
crease field research, and explore and implement research to practice
interventions; and
• Work with the NIOSH Office of Extramural Programs to increase
other research opportunities and enhance collaboration and aware-
ness of relevant PPT research efforts among intramural and extra-
mural researchers.
The community of extramural scientists is a highly valuable resource for
improving PPT. It is critical that this breadth and depth of expertise is focused
on important PPT research questions relevant to improving PPT and to transfer-
ring PPT research into workplace practice. Successful efforts to address critical
issues in many other fields of scientific inquiry have been the result of investing in
extramural research centers of excellence. Research centers of excellence allow for
interdisciplinary expertise and improved ability to evaluate interventions such as
new technologies, while facilitating strong collaborations. Increased intramural
research resources and personnel, extramural grants, cooperative agreements,
and direct contracts should be balanced to leverage PPT capabilities. Where fea-
sible, the PPT Program should take advantage of existing expertise, laboratory
infrastructure, and outreach networks, which may be costly to duplicate in the
intramural PPT Program. In addition to expanding the resources dedicated to
PPT research and development, a strong extramural community provides the
opportunity to extend scientific inquiry into the behavioral sciences and other
types of expertise that might not be available within the NIOSH PPT Program.
PPT centers of excellence should be aligned with one or more of the scientific
focus areas of the PPT Program. The centers could be developed to be topic-
specific (e.g., heat stress, dermal permeation) or to be sector-specific to explore
the unique PPT needs of a particular occupation or set of workers. Several types
of centers would be optimal. University-based research centers could establish
collaborative networks with other universities and with nonprofit organiza-
tions and federal agencies focused on research and development of innovative
approaches to PPT. Complementary centers of excellence would be those that are
centered in nonprofit organizations, state departments of health or labor, or agen-
cies with capabilities and expertise in post-market or field research. These centers,
in conjunction with partner organizations and universities, could increase field
research, and explore and implement research to practice interventions. Multi-
year funding and evaluation are critical to build a strong and ever-improving
research base.
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Recommendation 3: Enhance the Respirator Certification Process
The PPT Program should continue to improve the respirator certification
process. The program should
• Expedite the revision of the respirator certification regulations. As a
part of that effort, NIOSH should revise the respirator certification
fee schedules so that certification fees paid by respirator manufac-
turers fully cover the cost of certification. NIOSH’s research budget
for PPT research should not be eroded by the costs of certification.
Develop a mechanism for registering the purchase of NIOSH-
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certified respirators so that post-marketing notifications and recalls
can be accomplished expeditiously and effectively.
Expand the audit programs to ensure that results of the product
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audit program are methodologically and statistically sound and
that the site audit program ensures standardized quality of audits
whether performed by NIOSH staff or contractors.
Disseminate respirator certification test result data (e.g., breathing
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resistance).
Respirator certification has been a significant part of the work of the PPT Pro-
gram. In FY 2007, almost half (approximately 48 percent) of the PPT Program’s
$13.1 million budget was designated for the certification program (in prior years,
certification generally constituted about a third of the program’s total budget). In
FY 2007, certification occupied about half of the PPT Program’s full-time equiva-
lent workforce. The NIOSH respirator certification process is highly respected
and provides a major contribution to worker safety. The committee believes that
although the enhancements to the certification program recommended above
will require additional resources, the dividends that will accrue to workers from
improved standards, audits, and information dissemination will make such an
investment sustainable and well worth the start-up costs.
Improving respirators, and thereby reducing exposures to respiratory hazards,
is in large part an effort focused on updating, refining, and developing the tests
and performance criteria that respirators must meet to provide effective protec-
tion in the workplace. These tests are specified through federal regulations, many
of which have not been changed significantly in more than 35 years. The PPT
Program through NPPTL has developed a modular approach to updating federal
regulations. The committee sees these revisions and additions to the regulatory
standards as a major opportunity for the PPT Program to improve respirators
through updated tests that address current and evolving technologies. An issue of
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concern to the committee was the extent of federal resources devoted to the costs of
respirator certification, costs that would more appropriately be borne by respirator
manufacturers as is done for other types of product certification.
Recommendation 4: Increase Research on the Use and Usability of PPT
The PPT Program should intensify its research directed at barriers to and
facilitators of PPT use by workers. Such research should examine human
factors and ergonomics, as well as individual behaviors and organizational
behaviors, particularly workplace safety culture.
One of the greatest challenges to PPT effectiveness is ensuring that the worker
is wearing the equipment and is wearing it correctly. Understanding that comfort
is fundamentally a safety issue is a necessary prerequisite to improvement of the
materials, design, and engineering of PPT in such a way that critically important
human factors are taken into account. Improving usability will require research
that focuses on task- and worker-centered design and a more in-depth knowledge
of physiologic burdens (often heat stress) resulting from wearing PPT in the work
environment. The PPT Program is moving forward in its work with the National
Fire Protection Association and other partners in addressing these issues, particu-
larly as they relate to physiologic burdens for emergency responders and firefight-
ers. However, similar efforts are needed to assess usability issues for the majority
of the workforce employed in other occupations.
Recommendation 5: Assess PPT Use and Effectiveness in the Workplace
Using a Life-Cycle Approach
The PPT Program, in collaboration with relevant NIOSH divisions and other
partners, should oversee an ongoing surveillance and field testing program
to assess PPT use and effectiveness in the workplace. These efforts should
emphasize a life-cycle approach by including both pre-market and interval
post-market testing of PPT and include data collection on issues ranging
from training to decontamination. Enhanced efforts would
Assess and critically appraise PPT use and effectiveness across all
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types of PPT (e.g., gloves, eye protection, respirators) and across
relevant industry sectors and workplace environments;
Require random periodic field testing of an adequately sized sample
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of PPT to assess effectiveness, usability, and durability with reason-
able accuracy and precision; and
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Build on existing government and private-sector surveys and sur-
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veillance activities that collect PPT-relevant data and facilitate link-
ages to other datasets.
Improvements in PPT will be driven both by efficacy data generated in
the laboratory and effectiveness data gathered with equal scientific rigor in
the workplace. Research priorities for PPT should be based on the prevalence
and degree of exposure, modified by the strength of the observed association
between these attributes of exposure and long- and short-term outcomes of
illness and injury. The committee urges the NIOSH PPT Program to assess the
effectiveness and use of PPT in the workplace across all phases of the lifetime of
the products. This type of evaluation and surveillance construct could involve
an array of approaches and methodologies, including pre- and post-market
field testing of PPT products, surveys, on-site observations, focus groups and
other end user inputs, as well as outcome and impact evaluations and formal
cost-benefit analysis. Obtaining input from the end user of PPT products is
particularly important.
In considering how best to plan and learn from a life-cycle approach to data
collection that will involve field testing and ongoing surveillance, it will be impor-
tant to keep in mind that the immediate goals will differ with pre- and post-market
field testing focused on the effectiveness of a specific product and surveillance
focused on an ongoing assessment of PPT use. The committee believes these efforts
are a necessary and vital investment for improving PPT and protecting workers
from hazardous exposures. By choosing the appropriate methodologies and by
building on current data collection efforts, sound investments can be made in
obtaining data that are representative of workplace use and useful in improving
PPT products and training.
CONCLUDING REMARKS
The committee urges NIOSH to reexamine its commitment to PPT with a focus
that is directly proportional to its importance to the safety and health of millions
of workers in the many workplaces where administrative and engineering controls
are inadequate, impractical, or simply nonexistent.
NIOSH’s Personal Protective Technology Program has made significant
strides in improving PPT available to workers, especially respiratory PPT. It is the
committee’s hope that the recommendations in this report will provide the neces-
sary impetus for the development of a National Personal Protective Technology
Program that conducts, coordinates, and provides national oversight of research,
standards setting, and certification for all components of PPT and the interface
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between and among those components. The committee concludes, on the basis
of all available evidence, that increasing the protection of workers from hazard-
ous workplace exposures through the development and deployment of improved
personal protective technologies is not only a critically important and worthwhile
goal for workers in the United States and around the world but, with additional
resources and thoughtful reorganization, is by no means out of reach.