3D Printed 40mm Gas Mask Filter Assembly

I made this design as a cheap alternative to the expensive (and currently price gouged) 40mm gas mask filters that most masks take. This video explains how to assemble it using the 3D printed parts found here:
https://www.thingiverse.com/thing:4266578

Видео 3D Printed 40mm Gas Mask Filter Assembly канала Jacob Rodenbeck