Gas mask GM-4

The cover is made of high-quality natural rubber vulcanized. It has good physical and mechanical properties, anti-virus properties and aging resistance.
The lens protection of the mask adopts a water-blocking cover structure, which can ensure that the mask has a good performance of the protection of the lens during use. The polycarbonate screen with a large field of view has a wide field of vision, good optics and impact resistance.
Double reflex sealing ring, low air leakage coefficient.
The headband is self-adjustable, suitable for tightness, comfortable to wear and strong versatility.
It has communication performance, clear sound transmission and low sound transmission loss.
The bilateral filter box protects against biological, bacterial and virus damage, and the filtration efficiency is more than 99.995%.