Many consumers have a problem which is skin terrible like Sick House Syndrom to children.And Many house contain harmful such as Radon gas. Diatomite finishing material compared to other previous products which contain harmful chemicals that cause Sick House Syndrom, our products are healthy and eco-friendly, so It can prevent Sick House Syndrom, bad smell, allergic reaction ect. Hot and humid weather commonly causes mold. But our products prevent due condensation, so it can also prevent mold. We have been constantly researching and developing our products, as a result we have many patent and cetifications(JS mark) JS mark is the best certification in Japan. so Our products admit best quality, cheap price(100$) compared with any other Japanese products. You can reduce the cost.