http://www.hepafilterpaper.com..../air-filter-media/me information:
Specifications:
1.Filtration Grade: H14
2.Material: PP Melt Blown + Polyester
3.Item type: MK-P
4.Certificate: ISO14000,ISO9001
5.Efficiency: 99.9%
6.Port: Shanghai
7.Width: customize
8.Porosity: 0.3u
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