Dust-Proof Dust Mask Half Face Rubber Mask Safety Respirator Carpenter

Label:Yes Color: grey Use:Dust-Proof Package includes: 1Pcs Dust Mask Material:Rubber And Plastic Size:Average Size Note: 1, Use condition: the volume concentration of oxygen in the air is not less than 18% , the ambient temperature of minus 30 degrees Celsius to 45 degrees Celsius. 2, The mask can not be used for tanks and other closed container work environment, does not apply to gas used for other environments . 3, Check carefully before use it, check whether the components intact, exhalation valve sheet and the suction valve sheet is sealed to the body combination cartridges are close togethe