COVID-19 rapid evidence profile #18: Which types of non-medical masks are effective in community settings for reducing the spread of COVID-19 for different populations and under different conditions?

Abstract

An overview of the best available research evidence from around the world (i.e., evidence syntheses) and local research evidence (i.e., single studies) and may include a scan of experiences from other countries and from Canadian provinces and territories, about types of non-medical masks that are effective in community settings for reducing the spread of COVID-19 for different populations and under different conditions in response to a decision-maker’s request.