Posted September 23, 201113 yr Hi, I was looking for advice on how often to change home filters. As in AC, furnace and water filters. I'm kinda health conscious and I like to keep the indoor air quality high. I change the furnace filters the most often because I think the heat contributes to bacteria and such. BTW, here's where I get my furnace filters and other home filters to, I've been very satisfied. Thanks!
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