Air Purifiers: Here's To Better Health at Articles.com.my

"After arriving home from work this evening, the house wasn't nearly as cool as I like it. After changing our thermostat, I looked up at our HVAC air filter. It finally hit me: I haven't replaced the air filter in a year and a half! We rented out the house last year and have been back for six months. The same exact filter has been collecting particles the entire time. I almost immediately took a trip to a local home improvement store to pick up some filters. The sales guy revealed to me I should be replacing it every month or two."
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