Features: The full facemask respirator is ideal for both dust and gas prevention. Can be applied to respiratory protection in spraying, chemistry, poison gas, etc. Skilled in gas defense with automatically filtering. Safe and comfortable in use with good sealing performance as well as effectiveness in antitoxin. Activated carbon can protect you against industrial dust, formaldehyde, carbon dioxide, etc. You may wear safety goggles in accordance with environmental and personal needs. Activated Carbon Filter box： Used to protect certain organic gases or vapors, such as benzene, aniline, gasoline, acetone, carbon disulfide, ether, carbon tetrachloride, nitrobenzene, chloropicrin, etc. .