HOLTOP has more than 10 years experience in manufacturing air to air heat recovery equipment. The company was founded in 2002, with 30,000 square meters construction area. Including 20,000 square meters manufacturing area and 15,000 square meters office area. Its production ability reaches more than 100,000 pieces heat recovery equipment each year. The products range covers: Heat Recovery Ventilator, Rotary/plate Heat Exchangers, Air Handling Units and accessories Systems. As a leading manufacturer in China, HOLTOP supply OEM products to some famous brand air condition companies, such as Midea, Haire, LG, Hitachi, Aldes etc. Furthermore, it also was the supplier of Beijing Olympic 2008 and Shanghai Expo 2010. The R&D team of HOLTOP consists of 20 professional and experienced engineers. There is also 18 members technical support team to provide best pre-sales solutions and after-sales services. HOLTOP has passed ISO9001, ISO14001, OHSAS18001 and got EUROVENT, CE certification. The products are enjoying good market in international market, such as Australia, Poland, Taiwan, Hong Kong etc.