Food for thought no one talks about:
While N95's will not FULLY protect the wearer against viruses, any more than does a MERVE 11 filter for the heating and/or cooling system, they can help.
Picture hanging a Walmart bed sheet from the ceiling, filling your leaf blower with a cup of baking flour, standing directly in front of the sheet and pointing the blower at it, then turning it on. Only a minute fraction of the flour will go through. Even then, only because it was hurled at the sheet at high speed.
Now, do the same thing, with a new sheet, but hit the sheet at an angle. Anywhere the flour comes in contact with sheet material, it will be, for the most part, stopped.
Now, switch to a $300.00, high thread count sheet. The stopping power is increased.
Of course, it can be said it's the virus critters that get through that are the problem.
The latter aside, it must be remembered viruses are not little worm like creatures that will wiggle their way on through the mask to get at you.
The virus is about .1 to .3 microns, so even a few of our better dust collection filters and MERV 13 HVAC filters (don't swap your home filters out, it could destroy your blower motor and even damage the heat pump, if ice builds up because the system can't breath) would catch many or all of them.
Many of the virus critters will be hitchhikers on things that masks will catch.
Then there is the absurdity that was being pushed that only health workers needed masks, as if they, magically, worked for them, but not for anyone else. Not long after, I saw health workers switching from the absurd surgical masks (good for protecting people around the wearer, for the most part, and which should NEVER be found in a woodshop, sheetrock operation and so on) to N95's. Why? Anyway, I was mocked and ridiculed for saying N95s were better than common surgeons masks and suggesting they could help protect us, but look at us now.
https://smartairfilters.com/en/blog/coronavirus-pollution-masks-n95-surgical-mask/