The Polish MP4 gas mask is a close copy of the US M17, which was copied by several countries including Poland. Since the MP4 was based on the M17, most of the accessories for the M17 should work with the MP4.
|Filter Type||MP4 (Polish)|
|Country of Origin||Poland|
|Drinking Tube Attachment||No|
A little bit chalky but will clean up easily. It still has a very good seal would well a SHTF scenario.