The Effect on Fit of Multiple Consecutive Donning and Doffing of N95 Filtering Facepiece Respirators

摘要

Background: N95 filtering facepiece respirators (FFRs) are widely used in healthcare to reduce transmission of airborne infectious diseases. These respirators are generally described as single use or limited reuse devices, but cost and operational issues mean that they may be donned and doffed multiple times. There is scant research on the effect of this practice on adequacy of fit.