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Product name | Air handling unit |
Brand | Holtop |
Material | Stainless steel |
Function | Heat recovery,adjust cold/heat/humidity |
Application | Home,office,factory,plaza,toilets and other house |
Filter class | G4+F7+H10 |
Place of origin | Beijing,China |

We offer different types of fans such as direct driven centrifugal fan, belt driven DIDW forward centrifugal fan, and
belt driven DIDW backward centrifugal fan etc..



Holtop is one of the best manufacturer in ERV/HRV, heat exchanger and AHU area in China, founded in 2002, areas covered more than 30,000 square meters, turnover of 2012 is 42 million dollars, we have enthalpy testing lab. for products test. As a leader in energy/heat recovery equipments, we cooperate with more than 30 famous companies who located in Europe, the Middle east, Korea, Southeast Asia, Taiwan, etc. supplied equipment to Beijing Olympic and Shanghai Expo 2010, works together with domestic and international

Holtop products stand for TOP quality in heat recovery ventilation filed in China, certificated by CE, Eurovent, ISO and other different approved tests like anti-flaming test, anti-mold test, energy saving product test. Etc.

Holtop cooperate with world famous brand or offer OEM service

New products from manufacturers at wholesale prices