In 1999, Preair finished the independent research and production of the first dehumidifier. More than 20 years, Preair has focused on dehumidifier research and development, adhering to the concept of global operation and diversified development. To create a dry and comfortable environment for hundreds of millions of users has been taken as our mission. The sales network of Preair is not only throughout the country, but also aiming at the international market in North America, South America, Europe, Southeast Asia, Africa, Australia and so on. Large Humidity Remover, Dehumidifier With Hose For Basement , Stand Alone Dehumidifier , Large Capacity Dehumidifier ,Dehumidifier With Pump Canada . Preair has mature technique to manufacture industrial dehumidifiers. Preair industrial dehumidifiers adopt the principle of freezing dehumidification and are equipped with the international brand compressor, which is of high energy efficiency, good heat transfer, has reasonable configuration and strong dehumidification function. Industrial dehumidifiers produced by Preair are widely used in warehouses, factories and other large industrial places, can effectively avoid the significant loss of goods due to moisture and mold. The product will supply to all over the world, such as Europe, America, Australia,Portugal, Bangladesh,Morocco, Seattle.Humidity, i.e., the amount of water vapor in the air, is generally expressed in terms of relative humidity (RH). Humidity, temperature, air flow rate and fresh air volume are important physical parameters of indoor air quality standards.