Ceiling Filter TWA-1 series, with high adhesive surface, has high absorbability to various dusts. We use anti-broken synthetic fiber, the fiber density is increased layer by layer, and high adhesive TC fabrics is affixed on the outlet side. TWA-1 can block and absorb the dust molecules more effectively, it does not only keep air more clean and air flow more sufficient, but also distribute air flows evenly in the whole working space.