60mm Gas Mask Filter

thingiverse

This is a 60mm filter made to be fitted onto the serbian m1 gas mask or similars like the finn masks. It's made to be filled with two layers of cotton and activated charcoal (to make a simple filter) or to be left empty to work just as a prop. Thanks to https://www.thingiverse.com/thing:1840408 for the 60mm filter threads.