Health
Are two cloth masks better than one for preventing the spread of COVID-19? – The Conversation CA
Are two face masks better than one? Adding layers of filtration by double masking is a way of using the masks that we already have, possibly to better effect.
Double masking has emerged as a crowd-sourced method for adding extra layers to our masks, using the masks that we have a response to concerns about the overall direction of the pandemic and the transmissibility of new COVID-19 variants.
When our group recommended cloth masks as a worthwhile additional effort to reduce transmission of COVID-19, some of the masks that we had identified in the literature were three- and four-layer masks: in an experimental setting, they were very effective at blocking…
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