●Single box;

●Advanced composite material,lightweight,fit,soft,comfortable,anti-aging,long service time;

●Easy to disassemble and clean, install tight,safety using;

●Ring head belt design is more suitable for wearing helmet on operating environment,keep more durable of polyester spandex elastic belt;

●With a filter box P-A-1(3#), to prevent organic gas or steam,for example,benzene and it’s homologous ,aniline, gasoline, acetone, carbon disulfide, alcohols, ether, aldehyde, carbon tetrachloride, three potassium chloride, celfume, methyl chloride, nitrobenzene,  nitroalkane, chloropicrin;

●Another,with anti dust cotton and filter cotton cover;

●In line with GB 2890-2009 standard,have China LA & QS certification;

●Package:1pcs/bag,6set/box,36set/carton