1.Filtration Precision（mesh opening）: 1000 um~30 um 2.Being made of Monofilament or Multifilament mesh (Materials: polyester and nylon/polyamide) 3.Could be taken out and washed repeatedly, so economical it is. 4.To detain powders with larger diameter than the mesh opening 5.Yarns of the mesh with exact the same diameter and smooth surface. 6.Independent sewing system to avoid silicon oil pollution during sewing process. 7.Special side packing technology to avoid side leaking from pinprick.[...]

HEPA: High Efficiency Particle Arrestor Be made of polypropylene microfiber Suitable for many industrial fields Features: Chemical stable High powder-capturing ability in micron grade High ability in filtration and tolerance Filtration precision: 99.9%, Longer lifetime Owns the ability of hydrocarbon (oil) absorption due to its special structure. Structure feature: be composed of layers in different grades (There are at most 12 layers in a HEPA filter bag in different density and precision[...]