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The air filter replacement cycle has theoretical calculations, but in actual operation, operability is not strong and can only be replaced based on experience.
Filter replacement cycle, see table below (for reference only):
category | Check content | Replacement cycle |
Fresh air inlet filter | Is the mesh more than half blocked? | Sweep about once a week |
Coarse filter | The resistance has exceeded the rated initial resistance of about 60Pa , or equal to 2 × the initial resistance of the design or operation | 1-2 months |
Medium efficiency filter | The resistance has exceeded the rated initial resistance of about 80Pa , or equal to 2 × the initial resistance of the design or operation | 2-4 months |
Sub-high efficiency filter | The resistance has exceeded the rated initial resistance of about 100Pa , or equal to 2 × the design or the initial resistance during the operation (low resistance and sub-effectiveness is 3 times) | 1 year or more |
High efficiency filter | The resistance has exceeded the rated initial resistance of around 160Pa , or equal to 2 × the initial resistance of the design or operation | 3 years or more |
Low-efficiency filters generally use coarse fiber filters. The gaps between the fibers are large. Excessive resistance may cause the dust on the filter to blow away. In this case, the filter resistance will no longer increase, but the filtration efficiency will be reduced to almost It is zero, so we must strictly control the final resistance value of the rough filter!
Guangzhou Hao Tai purification provide
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