Filtrete Allergen Reduction Filter for Whole House Air Cleaners - 20x25x4
3M Filtrete Allergen Reduction 4-inch thick Filter - 20x25x4
should I change it?
From the most trusted brand in residential air filtration, the Filtrete 20x25x4 Allergen Reduction Air Filter is designed to fit any brand of Whole House Air Cleaning Sytem that uses a 20x25x4 replacement filter.
This includes the following 20x25 Whole House Media Air Cleaners:
* The Filtrete 20x25x4 filter is designed to easily replace the collapsible Filters in Aprilaire / Space-Guard 2200 & 2250 systems - just insert the Filtrete filter into your existing frame, and install... No need to fuss with collapsible filters ever again!
The Filtrete 20x25x4 filter has a Microparticle Performance Rating (MPR) of 1550, and removes the following airborne allergens:
Actual Filter Dimensions: 19-7/8 inches x 24-5/8 inches x 4-3/8 inches
Other Available Sizes:
The Filtrete 4-inch Allergen Filter should be replaced at least every 12 months.
In a typical home, a 4-inch thick air filter will become completely clogged with tiny particles of dust, pollen, mold, etc. after around 12 months of use. Certain conditions can add more particles to the air, and reduce the life of the filter to less than 12 months.
Change your filter more often if you have:
Why should you change your filter on time?
As the filter reaches the end of its life, the clogging makes the fan work harder and harder to push the air through the filter. This restriction can reduce the airflow through the house, and may affect the performance of the heating & cooling system.
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