Tip & How-To about Honeywell Heating & Cooling
Those high efficiency pleated or dust fighter filters will have the 90% or more efficiency in removing particulates, however the CFM or cubic feet per minute of airflow will be greatly reduced, approx 4-500 CFM, and thats worth 1 ton of capacity! So youre 3 ton is a 2 ton now but really clean! On days it seems to be losing the battle with heat remocve the filter for a 99 cent cheapie that flows better, in heat mode they are not as critical in my experience, but summers can be.
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