The manufacturing factory of Preair locates in Jiande, Zhejiang. The dehumidifier factory covers an area of 53,000 square meters, including several pieces of ecological greenery, a staff dormitory, production plants, environmental protection facilities, an office building, a testing center and other buildings with perfect structure. The factory also has fully automatic freezing dehumidifier workshop, sheet metal workshop, three fully automatic production lines, one semi-automatic line, laser CNC sheet metal production equipment, a set of large rotomolding production equipment, a dehumidifier automatic performance laboratory and other advanced manufacturing equipment. The factory is fully equipped and has an annual output of 1.2 million units of dehumidifier. Encapsulated Crawl Space Dehumidifier, Industrial Commercial Dehumidifier , Find Dehumidifiers , Regular Dehumidifier In Crawl Space ,Heavy Duty Dehumidifier For Basement . Patented technology represents a company's R&D level and machine performance. Apart from the patents, Preair has got the qualification of Hangzhou High-tech R&D Center and other brilliant achievements. In order to overcome the problem of the research and development of energy-efficient products, 10 senior engineers have spent countless days and nights discussing and researching. Finally, they launched the series of energy-saving robot (energy efficiency ratio is up to 3.0), which far exceeds the industry energy-saving standard. The high efficiency dehumidifiers are recommend by our customers. To meet the demand of customers is the driving force of our company. Due to the persistence of all of our staffs, the solution was finally implemented. The product design and development of smart dehumidifiers were completed beyond customers’ expectation. The product will supply to all over the world, such as Europe, America, Australia,Vancouver, Iceland,Accra, Belarus.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.