If you are not particular that the air filters in your cooling plan are of this type, you should not know that they can be cleaned & recoverd at repair time. Unless your filters are made to be recoverd, you should remove them from the cottageet, discard them, & replace them with brand-new a singles. Your air conditioner filters catch a good several types of contaminants & other debris from a single repair visit to the next, & these particles are often trapped well below the surface, in the filter fibers. Dust, pollen, & dirt particles at the inner portion of the filter will never be removed by surface cleaning or vacuuming. In reality, these pollutants will create a kind of barrier that prevents air from passing through the filter, making your air conditioner device less efficient, or even damaging it. Since air filters are not designed to shed moisture, your cleaning efforts may leave them wet. As moisture is retained over time, it can easily promote the growth of mold & mildew, which would then spread throughout your loft where the duct work carries it, then even if mold & mildew do not develop, a wet filter is much less effective at trapping pollutants than a dry filter. Cleansing efforts may be well-intentioned, but they can easily injure the filter’s construction. Slapping the filter against a hard surface to remove dirt & debris can cause injure on its own. It can also compromise the somewhat delicate construction of the fibers if you attempt to option something out of the filter, & if you tear a hole in the fibers, the filter will not be as efficient or effective as it was originally. Even though it’s safe to wipe & reinstall filters designed for reUSbility, it’s crucial to remember that for them to be genuinely effective, they should be cleaned often, even up to once a month. The particles they remove from the indoor air slowly begin to clog the filter when they are not cleaned often, so the longer it’s between cleanings, the less efficient the air conditioner device will be.