We are upgrading our masks, trying to protect ourselves from the more contagious covid strains that are starting to circulate. What are other people doing? My quick research this morning led me to this:
- 3M N95, hard to find (try wellbefore.com) - KN95 (china), easy to find but often fraudulent unfortunately - KF94 (korea), easy to find. less fraud, I think
We have been double masking every time we go indoors - using our current stack of N95 masks from home renovations projects as the initial layer and then our three-layered Tom Bihn cloth mask over it. Once we run through our stack, I don't think it'll be a big difference to use a KN95 vs a KF94 (as long as it's from a FDA-approved vendor). Here's a NYT article about it: nytimes.com/2021/01/12/heal...
I picked up a couple packs of 10 nice, coffee cone-shaped KN95 masks from Pacific Supply on Capitol Hill. They fit great, with a wired bridge (perfect if you have glasses), and are super thick, making me feel safe whenever I go out. But I still double-up with a cloth mask on top, out of fear that they're not as effective as they state.
I wear the 7502 for the grocery store, Outdoor Research mask for outdoor walks. Edit: I'm very skeptical of double masking providing additional protection to the wearer, it doesn't help air leaking around the side and actually can make it worse due to resistance.
Our healthcare friends at work are using BYD brand N95's, which are not available to the public but on the FDA approved list. But I did find BYD KN95's are available to the public on Amazon for about $1 a mask so we ordered those last. their reviews are accurate as the ear loops are tight on me, but that also means the mask is extra tight too (just may not work for bigger than average head folks).