Aning air duct is an environment friendly product providing excellent indoor environmental air quality. When compared with traditional sheet metal systems, Aning air ductTM Air Duct Systems offers additional benefits at equivalent prices: Features: Noiseless ventilation system Under normal operating conditions, AningTM Anti-germs ducts can reduce the noise affect, making this product the first choice of End Users and Architects. Lightweight solution Our AningTM Anti-germs duct's weigh no more than 2kg/m2. This results in featherweight loads on building structures and minimizes site labor. Improved indoor air quality One of the major advantages, the system meets any functional requirements for hygiene. Our Anti-germs ducts can keep from bacteria and mildew from growing, provide human with healthy air surrounding and ensuring maximum comfort in occupied spaces. Lower installation cost Our unique method of plate process, coupled with lightweight fabric ducts drastically cuts down site labour hour. Easy maintenance Our air duct products are simple to clean when necessary, making planned maintenance cost effective. 20 years quantity warranty We offer the best warranty in the business，a period of twenty years, Our company has gained a series of quality certificate like ISO9001:2000, UL181, CT1, BS-476, ASTM, GB8624, GB7190-92 ect. This underpins our belief in the quality of our products. Excellent physical strength Fire and flame resistant Prevents the growth of epiphyte, mildew and bacteria Widely application area