Health
Comparison of Mask Types Finds Key Differences in Filtration – Medscape
N95 masks that are well past their expiration date or have been used and re-sterilized are acceptable alternatives to standard new single-use N95 masks, a new study shows.
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
N95 masks that are well past their expiration date or have been used and re-sterilized are acceptable alternatives to standard new single-use N95 masks, new research indicates. But some masks start off with better filtration efficiency than others.
Personal protective equipment (PPE) and especially N95 respirators named for their ability to filter 95% or more of tiny 0.3-m particles are scarce …
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