Professional Dust Mask Work Safety Mask For Builder Carpenter

• Brand New And High Quality

• Excellent Airtightness Performance: Adopts soft rubber and more fit your face, more comfortable to wear and prevent dust come in effectively

• 3 Layer protection cotton filters, provide better protection, easy to replace the filter

• Adjustable head belt, more comfortable and fit most people's head

• Can be used for Polishing, Smelting, Constuction, Mining, Factory, Mining, Lab, House Fitment, Daily Haze Protection

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 together , canisters cartridge filter is loose.