At a glance
The National Personal Protective Technology Laboratory (NPPTL) is a Division in NIOSH. NPPTL prevents work-related injury, illness, and death by advancing the state of knowledge and application of personal protective technologies. NPPTL supports more than 20 million U.S. workers who rely on this equipment to keep them safe from on-the-job hazards.
What we do
NPPTL conducts laboratory and field research, surveillance, standards development, interventions, and conformity assessment activities. This work includes the respirator approval program and post-market evaluations to increase the compliant use of personal protective technologies and improve its usability and effectiveness. The division has the following goals:
- Develop and implement science-based national guidance for respiratory and other personal protective technologies.
- Develop new methods to test effectiveness of personal protective technologies for workers, including workers across industry sectors.
- Create guidance and tools to help employers and workers use personal protective technologies as effectively and economically as possible.
- Develop and evaluate innovative personal protective technologies designs and test methods to improve comfort, fit, and usability.
Focus
NPPTL is responsible for evaluating and approving respirator models to ensure the expected performance level of respirators used within U.S. workplace settings. NPPTL also conducts site and product audits to ensure respirators continue to meet standards after approval.
NPPTL also participates in international, federal, and consensus personal protective technologies standards development activities to facilitate translating research findings and sharing staff expertise.
Technology and product highlights
100 years of respiratory protection
- NPPTL more than doubled respirator investigations and approval decisions in 2020 and achieved 730 respirator approval decisions in 2021
- In 2021, NPPTL completed 412 quality assurance audits, providing confidence that respirators on the market continue to be effective for their intended purposes.
- NPPTL international respirator efficiency testing revealed that approximately 60% of more than 780 international respirators tested demonstrated less than expected filtration efficiency and should not be used as respirators in US workplace settings.
- NPPTL provided the scientific basis for the Strategic National Stockpile's release of respirators and surgical gowns that were beyond manufacturer-designated shelf life, providing millions of respirators and gowns to healthcare workers during the COVID-19 pandemic.
- NIOSH shortened the timeline for its approval of new N95 respirators to support the national effort to increase supplies of PPE in the first year of the COVID-19 pandemic.
- NPPTL established guidance to identify the gowns and coveralls needed to protect users from harmful pathogens such as Ebola.
Safety and health research areas
Staff have experience in the following areas:
- Personal Protective Technology
- Post Market Assessment
- Healthcare
- Emergency Response
- Public Safety
- Mining
Resources
Centers and programs
Respirator Approval Program
This Program is responsible for the testing and approval of respirators used in occupational settings. To be approved, a respirator model must meet the minimum performance requirements defined in Title 42, Part 84 of the Code of Federal Regulations (42 CFR 84). This approval process ensures a minimum level of worker protection from airborne particulates, chemicals, and vapors. The approval process includes a laboratory evaluation of the respirator model, an evaluation of the manufacturer’s quality control plan, and audit testing of certified respirators.