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Frigidaire LRA257ST214 Filter
The filter in the wall unit is the best line of defense when filtering tiny dust fragments and other small elements as it passes through. This simple filter can keep the unit dust-free and make it work much more efficient while cleaning the air breathe in and out everyday. Due to the amount of dust in the house, the unit filter must be swapped out for a new one or perhaps washed every so often in order to keep things clean.
Elements of a poor filter
- Many pros have recommended to replace the filter four times a year to keep the unit running efficiently
- The unit air filter looks very bad and it would be best to replace it right away
- When you face it toward a light, the light does not breach the other side of the filter
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