Q: I use an expensive filter for my air conditioner intake because it is washable. I have been using the same one for about a year. Is that OK?
A: We strongly recommend sticking to the 1-inch pleated paper filters that cost about $4 each and that have to be changed more frequently. The type that you are describing is somewhat heavier and can be very restrictive about airflow into your heating and air-conditioning system. It can end up making your AC work much harder. We often compare it to making an athlete run a marathon while breathing through only a straw. Your unit needs to be able to "breathe" in and out of your home in order to work correctly and efficiently. Sometimes it is also difficult to properly clean those washable filters.
An Arizona homebuilding and remodeling industry expert for 25 years, Rosie Romero is the host of the syndicated Saturday morning "Rosie on the House" radio program, heard locally from 8-11 a.m. on KNST-AM (790) and -FM (97.1) in Tucson and KGVY-AM (1080) and -FM (100.7) in Green Valley. Call 1-888-767-4348. For more tips, visit rosieonthehouse.com
