Use of N95, Surgical, and Cloth Masks to Prevent COVID-19 in Health Care and Community Settings: Living Practice Points From the American College of Physicians (Version 1)

These practice points are based on best available evidence on effectiveness of N95 respirators, surgical masks, and cloth masks in reducing transmission of infection with SARS-CoV-1, MERS-CoV, and influenza-like or other respiratory viruses in community and health care settings.

Source:

Annals of Internal Medicine