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.
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.