KELING Brand Air filter Resistant Detailed

All of air filter have same program, when the dust accumulate at peaked ,in the same time , the air filter resistance achieve the highest, it is time for change another news air filter.

What is primary resistance? If the air filter is new one, the resistance is primary resistant

What is finally resistance? If the air filter should be replacement, the air filter resistance is finally resistance.

The follow elements influence the finally resistance:

1: Air filter mechanical strength:

Usually the air filter media area more bigger the frame and fixed device should be with less rate. If the air filter resistance too much big, the frame may be make the filter damage or broken.

You can get the finally resistance from this point.

2: HEPA air filter replacement cost.

3: air filter operated resistance consumer.

4: the system air flow variety range.

5: Air filter efficiency variety:

G3: (Coarse filter) 100-150pa

G4: 150-200pa

F5-F6: Medium air filter150-250pa

F7-F8: sub-medium filter 250-400pa

F9-F11: sub HEPA air filter 350-450pa

HEPA air filter and ULPA air filter: 400-600pa