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Haier ESA405M Filter
The filter in the wall unit is designed to be good at removing small dust molecules and other tiny bits from the air in the house. This can both keep the unit clean and make it work a lot better at doing its job while also cleaning the dust out of the air you breathe all day. Because it is really easy to do, this filter should really be replaced or cleaned a few times a year depending on how much you use it.
Red flags the dust filter will need to be replaced
- It looks dusty and could be replaced soon
- Professionals have advised to swap out your air filter about every three months to keep the unit running efficiently
- If you hold it up to the light, it will hardly infiltrate to the opposite side of the air filter
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