A good filter does three jobs at once. It catches dust, pollen, and other particles. It helps with odors from cooking, pets, and everyday household activity. And it keeps that debris off the coil and blower, which is how the equipment holds its efficiency.
Standard fiberglass filters need a look every 1 to 2 months. Pleated filters usually last 3 to 6 months. High-efficiency filters in a rack built for them can go 6 to 12 months. Pets, smoke, and open windows during pollen season shorten every one of those timelines. If the filter looks gray and bowed, it is already too late. And, remember, do not wash a disposable filter. Washing collapses the media, and lets air go around it.
Radco stocks standard filters in the common sizes and MERV ratings. If you notice bacteria and mold on the coil, a UV light is the ideal add-on, not a thicker pad. If fine dust is still hanging in the air after the filter is right, an ionizer helps those particles clump, so the filter can hold them. Though, neither one replaces the filter itself.
Call (352) 684-7821 to get started, or call the parts center at (352) 596-3369.