The traditional method to increase the efficiency of ventilation filtration of the cotton filter is by using both the acidic and chemical material to create chemical reaction. This method will destroy the structure of the cotton filter thus reducing their lifetime and may acidify the residue, which may endanger the health of the life under the water. This product uses the latest technology which is dealt by high-pressure gas. The main components used for this product are hydrogen and oxygen. By this method, the efficiency of the cotton filter will better than the chemical treatment. It can maintain the structure, extend the lifetime and only produce the by-products ''water''. It will not produce any pungent odor and environmental consideration is taken in during production of this product. Unavailable
