KL-AIR Group specializes in the gas purification industry for decades. We operate various types of air dryers, air filters, nitrogen generators, oxygen generators, industrial water chillers, blowers and many other products which number of entity company throughout the country.

Hangzhou Kelin Aier Qiyuan Equipment Co., Ltd. is a wholly-owned subsidiary of KL-AIR Group. It was developed in cooperation with many domestic and foreign scientific research institutions in 2013, and officially launched market in 2019.

 KL-AIR Group cooperates with many large-scale famous membrane production enterprises in the world, and develops with domestic well-known universities and colleges, then has established a comprehensive production inspection and testing laboratory. Applied in more than 30 countries in the world.

 Hangzhou Kelin Aier Qiyuan Equipment Co., Ltd. is the sales company of KL-AIR Group. Currently, it is responsible for the comprehensive promotion of the market development and application of membrane separation products, and is focused on the use of membrane technology to save energy and reduce emissions, and provides a good solution for technological transformation and upgrading, make this high-tech better use and promotion.