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 Xi'an Ultrafiltration Company supplies multiple blowers' heat and compressor heat zero-gas-loss adsorption dryers to the home appliances and refrigeration industries such as Gree and Aoxiang. These dryers help to build new energy-saving air compressor stations with a pressure dew point ranging from -20 to -50 degrees Celsius. At the same time, the company provides hundreds of helium gas drying and recovery devices for the home appliance industry, making significant contributions to saving this non-renewable strategic resource. Moreover, based on the helium gas drying devices, the company has developed a new type of helium gas membrane purification device, which significantly enhances the helium gas recovery efficiency, with a purification efficiency of over 95%.