This is to adapt the Sperian Survivair cartridges to a 3M bayonet style mask. the mask I have is the 6000 series mask, however, it should fit most as long as it has the male bayonet fittings.

I combined two other Things to make this since user RoJSimpson modeled the threads and user VinnytheKnight made the bayonet portion.

Hopefully this helps if you had a bunch of Sperian filters but no mask!

The overhangs are rough because I used no supports, near impossible to get them out. Use 100% fan and it should turn out with a few string to snip off.