Face Mask, North N95 Filter

thingiverse

Cartridge replacement for North Brand Mask. Use 80mm N95 prefilters to replace the regular cartridge. The adapter and one filter in place of the exhaust check valve so you will be breathing in and out through the same filter so protecting yourself and others. Print caps to block off the regular cartridge attachments. This will protect you but not other people. Alternatively, just use in place of regular cartridges, but you will not be protecting others. You could also use a cap to block off just one Carthage, reducing the number of cartridges.