Haoair Brand Air filter Resistant Detailed
All of air filters have same program, when the dust accumulate at peaked ,in the same time , the air filters resistance achieve the highest, it is time for change another news air filter.
What is primary resistance? If the air filters is new one, the resistance is primary resistant
What is finally resistance? If the air filters should be replacement, the air filter resistance is finally resistance.
The follow elements influence the finally resistance:
1: Air filters mechanical strength:
Usually the air filters media area more bigger the frame and fixed device should be with less rate. If the air filters 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 filters replacement cost.
3: Air filters 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 filters 150-250 pa
F7-F8: sub-medium filter 250-400 pa
F9-F11: sub HEPA airs filter 350-450 pa
HEPA airs filter and ULPA air filters: 400-600 pa
