Covid mask HEPA CPAP filter cover!

thingiverse

CPAP HEPA filter holder for standard Covid masks being created. This little insert holds the filter flush with the snap-in holder, and has a little handle to pull it out to clean/replace the existing filter. Print as it comes in the file, no supports, after a few attempts, this is the best orientation that i found for this one. The filters i am using, you can buy from Amazon Prime for pretty cheap, and are HEPA rated, which means they filter out 99.97% of .03 micron, which is better than the N95, which only does 95%.