n95 mask material and how to make your own effective masks. Plus UV light to clean and reuse your masks.

 

MIRV 13 furnace filters are what you need and from what the video says and demonstrates it seems easy enough to make effective masks. Apparently if you put them under UV light for a while and wait about 14 days you can reuse them again. I’m not an expert but it looks like a worthwhile idea to me.