YINO Protective Gas Half Mask Single Activated Carbon Filter Cartridge Respirator Safety Anti-Dust Chemical Paint Spray (Half-Mask Respirator) Activated carbon can be combined and precipitation with toxic substances, adsorbing poison gases, cleaning the air. Unscrew the filter box, it is the main cover of mask, rubber materials, reusable and cleanable. Suitable for chemical industry oil The paint The pharmaceutical pesticide Toxic sites.Such as painting, acid treatment, paint, pharmaceutical, chemical processing, also can be used for welding operation, etc.; Effectively filter poison gas and clean air; Using time about 200 hours according to operating environment; Comfortable wearing and can be recycling used. Material: Plastic + activated Carbon