N95 / KN95 are the best general mask... but the question I asked was regarding a cite that the CDC was saying a N95/KN95 should be used for the new variant.Do you have a source, specifically calling for KN95 for the new UK strain?
KN95 are not tested in the US. They are tested in China ( the COO) and are equal to the US N95 masks.
Rescue Essentials has them at $1.49 ea. For small quantities. When it was my Company we sold boxes of N95 masks for $0.77 ea. But a quick survey shows that 1.49 for KN95 masks is a fair deal today.
I needed to use masks before they were available in April for work, so I went online, found instructions, and sewed my own two cloth ply masks and have been using them. Granted, they don't quite protect me as they are meant to protect people from me, though they fit so much tighter and better than those off the ear masks. But I'm not exactly wanting to buy masks that are of questionable quality and truth be told, other people need 95's more than me.
There's also the KF94 masks--the Korean equivalent to N95.
I figure the ones we can get without being a hospital or the like are probably not as good as the true ones--but they're still going to be better than surgical masks as they seal better. If nothing else, many of the KN95s use ear loops and a proper mask doesn't.