Activated carbon face mask with valve, suitable for dust environment for easy breath Specially use for : urban and rural environment Available colors : black/blue Available sizes : large, medium Activated time : one month Material details Outer most material : pique 180gsm poly cotton Activated carbon filter i : natural activated carbon customized to adsorb industrial Emission Activated carbon filter ii : natural activated carbon customized to adsorb industrial Emission Dust filter : tdk20* nonwoven particulate filter and valves Inner most material : cotton fabric white/light blue Piping material : black spun polyester Mode of attachment : velcro type
