This project will investigate the recommendation by the IOM to examine the effects of the placement of a surgical mask over a N95 particulate filtering respirator using the Automated Breathing and Metabolic Simulator. A subset of respirators and surgical mask will be tested to compare with a companion field study by the Dept of Veterans Affairs (VA).
Health care providers / first receivers / hospitals
Department of Veterans Affairs
Public, at large
Select N95 respirators & surgical masks based on the US Strategic National Stockpile and the VA study
Perform tests on each model and type (cup, cup with fit enhancements, cone/duckbill, flat-fold), medium size (or M/L or universal), with and without exhalation valves, with and without surgical masks = 192 tests.
Perform tests on same respirator models and surgical mask as those used in VA field study = 8 tests.
Q1 Complete Peer Review
Q2 Purchase Respirators
Q2 Initiate data collection
Q4 Complete data collection
Manuscripts published or submitted to peer review journals
Presentations to stakeholders or conferences
Standards committee meetings & public meetings
Combine results with subjective information from VA study
Presentations at scientific meetings - NORA and AIHCe
Future human studies with focus on low performing combinations
Recommendations to CDC for pandemic response
Data are used to revise or support NIOSH / CDC guidance on respiratory protection for healthcare workers and test protocols are considered in the development of ISO and ANSI standards
Page last modified: July 23, 2007
Page last reviewed: July 23, 2007
(archived document) Content Source: National Institute for Occupational Safety and Health (NIOSH)