- If someone in your family is constantly battling allergies or asthma, part of your problem may be pesky dust mites. Or it may be pollen, mold spores, or other airborne irritants. May be it's time to improve the quality of your home environment with a commercial grade filter from Best A/C Filter. Get rid of dust mites once and for all. Do you need an efficient and inexpensive air conditioning ...bestacfilter.com