Material: Mask(Soft silica gel, without glue smell), filter box(activated carbon), glass(PC)
Made of 4 components: Mask, filter box, respiration value and elastic ribbon
Made of healthy and clean material, without harmless
Double value design, strong breathability than normal single value
Fit for people who always touch organic vapor, Benzene and its homologue, petrol, pesticide, acetone, carbon disulfide, ether and so on in agriculture, industry and scientific research units