Double Respirator Mask NP306 Product Description NP 306 ANTI DUST SPRAY CHEMICAL GAS DUAL CARTRIDGE HS-20 150 YELLOW Effective filtration gas, clean air Soft and comfortable, good air permeability Double Cartridges Respirator Mask Dual strap system adjusts easily for extra comfort Dual Cartridge Chemical Respirator Great for filtering small dusts, mists, poisonous and metallic fumes or Paint Spray, chemicals and small flying particles of low toxicity