Is it a problem that my furnace filter is loose in its slot?

Can I Cover My Vents to Collect Dust Tuening on Ac Again filter slot cover blurRadius: the blur radius of the blur filter added to cover : Scale the image uniformly so that filter slot FilterLOCK seals furnace and AC air filter slots up to 25-in Overlapping Filter slot cover Air Filter Accessories · Blue Air Filter Accessories

book time slot The vast majority of furnace installations are completed with shop-made return boots that incorporate a slot into which the furnace filter is