Montana Mask Filter

thingiverse

I created a additional and better filter with bigger filter surface, so breathing is more easy. The Filter fits to the Montana Mask ( https://www.makethemasks.com/ ) Just insert a filtertissue of your choice, press it together and tape it for gas tight sealing. Additional, like in the old style of the masf with the filter frame, you can add a second paper or material (recommended for sealing) so its even better filtering. Stay save!