Photocatalyst decomposition Photocatalyst in the light stimulated by the catalyst, and oxygen in the air and water to generate negative ions and hydroxyl radicals, can oxidize and decompose a variety of organic pollutants and inorganic pollutants, and eventually degradation of carbon dioxide, water and The corresponding acid and other non-hazardous substances, so as to break down pollutants, air purification role. Photocatalyst is indeed effective in absorbing formaldehyde. Photocatalyst as a new type of material, in theory, will not cause secondary pollution, however, due to the different manufacturers of photocatalyst technology, it can not say photocatalyst will not cause secondary pollution. In addition, the use of photocatalyst operation is more complicated, generally provided by a dedicated service company to use. Purifier treatment Currently on the market of air purifier is divided into negative ions, ozone type, filtration adsorption, electrostatic integration and photocatalyst type. Different air purifiers have different working principles, such as negative ions is through the production of negative ions, decomposition of air odor and attached to the dust, so as to achieve the purpose of purifying indoor air. Air purifiers have some efficacy in the absorption of formaldehyde, but air purifiers are generally only effective in confined spaces. If you use the air purifier in the case of a window, there is not only no effect but also wasting electricity. "plastic floor pakistan,wood shipping pallet discount,wood best deck for outdoor balcony "