3M Gas Mask Accessory 3303CN Filter Cartridge for Acid Gas Protection, 1 Piece

3701: KN95 level, low breathing resistance, good protection performance, effective filtering of dust, suitable for welding, mining, etc.

1703: Low breathing resistance, effective filtering of non-oily particles, suitable for coal dust, cement dust, etc.

1705: Low breathing resistance, effective filtering of non-oily particles, suitable for mining, welding, etc.

3301: Activated carbon, large adsorption capacity, long protection time, protects against organic gases and vapors such as benzene

385: Used to fix filter cotton on filter box

When assembling filter cotton, ensure the side with words faces towards the face

Suitable for various face shapes

Comfortable and elastic headband

Low breathing resistance, large adsorption capacity, long protection time