Remove particulate impurities in the air device. Piston-type machine (internal combustion engine, reciprocating compressors, etc.) work, if the inhaled air contains dust and other impurities will increase the wear parts, must be equipped with air filter. Air filter from the filter and the shell of two parts. The main requirement is that the air filter with high filtration efficiency, low flow resistance, can be used continuously for a long time without maintenance.

Filtering requirements on the filter
1. Filtration precision: filter out all the larger particles (> 1 - 2 um)
2. Filtration efficiency: to reduce the number of particles through the filter.
3. To prevent the emergence of early engine wear. Prevent damage to the air flow meter!
4. Pressure is low, ensure that the engine has the best air-fuel ratio. Reduce the filter loss.
5. Filtering area, high ash content and long service life. Reduce operating costs.
6. Installation space is small, compact structure.
7. Wet very high, to prevent the absorption filter appear deflated, the result is the breakdown filter.
8. Retardant
9. Sealing performance and reliable
10. Good value for money
11. No metal structure. Environmentally friendly, reusable. Conducive to storage.