3M Respirator p100 round covers

thingiverse

I figured, given the impending doom and all, I'd get creative with my old P100 filters lying around. If you're planning on venturing out into public during the apocalypse, you might as well dress for the occasion. So, I came up with a breathable cover design featuring the biohazard symbol prominently displayed. If the world doesn't come to an end anytime soon, I highly recommend against buying P100 filters like this one from Amazon: https://www.amazon.com/3M-Particulate-Filter-Organic-Filters/dp/B079X5C3QP. Medical personnel need them more than anyone else, and you shouldn't waste your money unless absolutely necessary. *Disclaimer: Adding a biohazard symbol to your P100 filters won't magically make them better at filtering out particulates. It's a shame I even have to mention this, but I guess some people need it spelled out.*