OBJECTIVE To explore different strategies for achieving proper use of N95 respirators by hospital staff, including viewing the donning process in a mirror, receiving assistance from a Buddy during donning, and using a bouffant cap to cover the hair after donning an N95 respirator. This study evaluated the fit factor, the time required for donning a respirator, and the practical usability of each strategy. METHODS This quasi-experimental study involved 60 healthcare workers. Demographic and medical information were collected using Occupational Safety and Health Administration (OSHA) compliant questionnaires. Facial dimensions were measured and classified into three face-size groups according to the NIOSH bivariate panel. Participants practiced one of four different N95 respirator donning strategies after watching a training video: using a mirror, receiving Buddy assistance, and using a bouffant cap. A quantitative fit test (QNFT) was conducted before and after practicing each strategy following a modified OSHA protocol. After completing each of the strategies, participants indicated their preferred donning method. They were subsequently randomly divided into three groups to furthe
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