John Ewoldt
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• Keep humidity low to guard against molds and other allergens and bugs that prefer damp conditions.

• Start your basement dehumidifier as soon as your furnace is turned off for the season. Don't wait until humidity levels rise too high.

• Buy a hygrometer ($10 to $25) from a hardware store to measure humidity levels.

• Don't run a dehumidifier unless the room temperature is 60 degrees or higher. Otherwise, the coils may freeze up.

• Skip DampRid. Consumer Reports said the product, which claims to lower humidity levels to 50 percent with calcium chloride crystals, worked very slowly, even in a closet.

• Put dehumidifier water on houseplants or outdoor plants, but not vegetable plants, due to copper and zinc residue from the coils.

JOHN EWOLDT