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Haier HWF05XC5 Filter
The filter is there for filtering minute dust particles and other unwanted bits as it is being forced through the system. This helps keep the unit clean and help it be a lot better at doing its job while, at the same time, filtering the air you breathe. During regular maintenance the filter should probably be swapped out for a new one or cleaned at least twice a year if not more, in order to keep things clean.
Warnings the dust filter is on its last leg
- It is advised to replace the filter every 90 days for clean air inside the house
- If you place a light source behind it, the light is unable to penetrate through a very dirty air filter
- The system filter looks dusty and should be replaced right now
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