Cardboard Frame Air Conditioning Pre air filter G3 G4 EN:779

Features:

1. Light weight, cheap cost;

2. Corrugated paper frame also moist resistant;

3. Low pressure drop, large dust holding capacity;

4. The filter media color is customized;

5. Filter media backed with metal mesh, can stand high air velocity;

Technical parameters:

Pressure drop range: ±15%

According to clients` requirements offer different specifications

Applications:

The Pre filter mianly use in HVAC system pre fileration, to filter the large dust before HEPA, that can increase the service life of pocket filter and HEPA filter, pre filter should be changed frequently.

Description:

The best advantagous of the pre filter is that they are cheap, you don`t need to pay heavy budget for replace them frequently, and they are easily to replace. If you want to enlarge your pocket filter and HEPA filter service life, also save your electrical budget for running the HVAC system, it`s a good idea to change the pre filter in time. 

The filter frame is corruaged paper that can stand strong in moist environment, the frame and filter media is sealed by hot-melt glue, prevent air leakage. V design folded media can help collect the dust.

The filter media is backed with metal mesh, one side or double side, that can reinforce the filter media;

the metal mesh is anticorrosive can service long in moist environment.

All the pre air filter test by EN:779 standard; 

If the pre air fitler media become black, it`s the time to replace it; some people like to wash it and use it again, we don`t recommand that; if the filter frame is metal, that can be washable, if it`s paper, it`s disposable.