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Updated: May 24, 2026

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
Published on: February 12, 2021
Surgical mask versus N95 respirator for preventing influenza among health care workers: a randomized trial
1Division of Emergency Medicine, McMaster University, Hamilton, ON, Canada. damonatrie@gmail.com
Clinical Question:
Are surgical masks inferior to N95 respirators in reducing influenza infection in health care workers?
Article Chosen:
Loeb M, Dafoe N, Mahony J, et al. Surgical mask vs N95 respirator for preventing influenza among health care workers: a randomized trial. JAMA 2009;302:1865-71.
Objective:
To evaluate the effectiveness of N95 respirators compared to standard surgical masks in reducing influenza infection in health care workers.
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