I've been using this risk chart to help me decide which preventive measures to take in a given situation since it was published by the San Francisco Chronicle early in the pandemic:
Yes, it may be based on old data but I think the general guidelines are still valid.
While we're talking about N95 masks, I like the fold-style masks made by DemeTECH. These masks are not cheap but they are NIOSH certified, made in the USA, and, most important, relatively comfortable to wear for long periods.
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Yes, it may be based on old data but I think the general guidelines are still valid.
While we're talking about N95 masks, I like the fold-style masks made by DemeTECH. These masks are not cheap but they are NIOSH certified, made in the USA, and, most important, relatively comfortable to wear for long periods.