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10 ways your home could be toxic

Redbook Logo By Holly Corbett of Redbook | Slide 1 of 10

Air filters

"People spend more than 80 percent of their time inside, where air may be even more polluted than outdoors," says James L. Sublett, M.D. Newer homes are designed to be energy-efficient, meaning there's not much ventilation, and irritants like dust mites, mold, and pet dander get sealed inside, potentially aggravating conditions such as allergies and asthma. To filter the air in all of the rooms in your home, Sublett recommends getting a MERV 11 or 12 disposable high-efficiency filter for your furnace and air-conditioning system. Change the filters every three months, and leave the fan on your air conditioner so pollutants such as pollen don't get trapped indoors. You can find filters at
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