"Any mask is better than no mask. It's got to block something, and something is better than nothing"
Who knows, keeps you from touching your face, will block out from sneezing/coughing out droplets and much else. Got to help block some incoming. N95 is difficult to get. My step-Mom is making cloth masks with her own filtering in between, and I understand even a Steelers one that is adjustable.
Now, here's some ideas I found from others.
3m filtrete air conditioning filters. They block out 99.97% and apparently made by 3m and the stuffing in them is as good if not better than the n95 masks. Youtube has tons of videos on how to make them.
Then their are tons of other air filters. They say to look for "MERV 16 rating", which apparently will also do just as well. Then I watched another doctor who's wife did a long video - but they are asking folks to make them and send them to their local hospitals. I'd be lucky if I could make just one or 2, so if I ever did they are for my ass.
Anyway, she makes the same masks by using vacuum HEPA filter bags. Pinchesm, cut here and there, sew it this way, and you have yourself an awesome mask. And here's another about the same -
https://www.primalsurvivor.net/homem...spirator-mask/
Hell, even just look at Youtube for "alternative n95 mask" and you'll find other ways. It's all about the filtration in between whatever mask is made, and of course MUST have a good seal all the way around. And then some doctors have also found a way to disinfect them properly for doctors for reuse.