Paper Frame Filter The pre-filter is a low-efficiency filter used in HVAC systems that functions to filter out large sizes of dirt and dust in the air. This filter is usually placed at the very beginning of the AHU filter system right before the Medium filter or Pocket Filter because it has a large dust capacity and good durability at an economical price. In general, the Pre-Filter has a frame made of aluminum or cardboard with a mesh separator and galvanized wire which serves to increase the surface area.

High ink accumulation capacity; It does not propagate flames, as it is self-extinguishing; Progressive fiber density prevents surface saturation by ink impregnation (longer service life).

White synthetic wire frame filter The non-woven polyester media is sewn onto a frame of copper coated steel wire. Media at G2,G3 or G4 grades.

Nylon mesh washable filter Specification: ·Washable ·Large air flow and low resistance ·Temperature and moisture resistance ·High acid and alkali resistance Application: Filter dust, be widely used in Fan Unit,diffuser and the indoor equipments withthe large air flow, also applied to the prefiltration of the air condition system and the clean room. Outside Frame: aluminum alloy or nylon mesh Media: PP, PA, PE material Inside frame: galvanized or stainless steel Class: G1,G2 Average arrestance:<65%

Washable pre air filter The panel pre filter is suitable for the initial filtration of air conditioner and ventilation systems, filtration of the returned air in the clean chambers and pre-filtration for the partial high-effect filtration systems. It has been broadly used in various industries, to include electronics, electric appliances, aviation and aerospace, automobiles, pharmaceuticals, biological engineering, environmental protection, telecommunication, banks, intelligent buildings, hotels, restaurants, etc.