ANSWERS: 1
-
I doubt they do anything, if you have the door or window open more pollen or dust will come in unless there is a dust storm happening inside your house maybe. Think about how much air is in your house and how long it will take the pollen filter to move it all thur the filter I cant see the filter doing anything. I once had a job that measured the amount of air coming out of each aircon duct.
Copyright 2023, Wired Ivy, LLC

by 