Efficiently removing unpleasant odor, dust, general air and water pollutants, and for killing bacteria. Features:* Efficiently removing unpleasant odor, ... dust, general air and water pollutants, and for killing bacteria.* Widely used in manufacturing industry, car filter and household appliances such as ... , dimension and density*20ppi,30ppi,35ppi,45ppi,60ppi,90ppi Hot!!!Water Air Sponge filter foam