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LG ARNU423TMC2 Air Filter
It is highly recommended that the air filter gets replaced every 90 days or so for optimal air quality throughout the home. LG ARNU423TMC2 filters come in a wide array of filtering levels, depending on your air quality needs and the specific size of filter you need for your system. The measurement proportions of the filter is not really a choice of options because of the constraint of your air handler.
What are the clues to watch out for to know my filter has a need to be replaced?
- The unit air filter looks bad and the best thing to do would be to replace it real soon
- It is advised to replace your air filter four times a year for clean air inside the house
- As you face it toward a light source, it does not shine on the opposite side of the filter
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