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. Industrial-Use Dehumidifier, Dehumidifier For Basement Settings , Large Humidity Remover , Ceiling Mounted Dehumidifier Uk ,Portable Dehumidifier Commercial . An industrial dehumidifier is applicable to a large area. A single dehumidification area of the dehumidifier is from 200 to 1200 square meters. Patented technology, strong dehumidification, high efficiency and energy saving are significant advantages of Preair industrial dehumidifiers. The product will supply to all over the world, such as Europe, America, Australia,Belgium, Costa rica,Comoros, Korea.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.