CE certificate half face gas mask against C6H6,CL2 SO2 1.Purpose and CharacteristicMF25 half face piece gas mask is apply to the workers, who work in the different filed, such as industry, the agriculture, the scientific organization and so on, and need to touch the organic gases and vapors, such as C6H6, CL2, acetone, alcohols, CS2, CCL4, CHCL3, CH3Br, nitro paraffin, paint and its derivatives ...