[2015-08-11]KOPU filter media Advantage
[2015-08-11]How long is the air purifier filter replacement?
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4G is a manufacturer of air filtration media. 4Gs media are used primarily in making pocket filters for general ventilation. In January 2012, 4G was founded by Hunan Yunfang Filtration Tech. and Dutch Glass Works, B.V. Dr. J. Cai, who has been working in the filtration field for year......[More]