Have indoor allergies? Beware. Triggers such as mold, dust, and pet dander lurk around every corner -- often in unexpected places.
Take a good look at your houseplants. Mold spores, like the ones shown here, can grow in the pots and spread to the floor. To minimize this, remove dead leaves, use saucers, and avoid over-watering.
Pet allergies are common, but Fido's fur is not to blame. The problem is pet dander -- dead skin flakes. It floats, settling on carpets, furniture, and bedding.
Keeping pets out of certain rooms is only partially helpful. Airflow can carry dander throughout the home. Tip: Clean and vacuum often, and wash your hands after playing with your pet.
Carpeting or area rugs can liven up a room in ways you didn't intend.
As they accumulate dust, they become a feeding ground for microscopic dust mites. Body parts and feces from dust mites are notorious indoor allergy triggers.
Upholstered furniture provides a cozy refuge for dust mites. Vacuum furniture fabric regularly. Leather, vinyl, or other smooth surfaces can lessen allergies.
Furniture stored in damp areas, such as basements, may grow mold spores, shown here. Use a dehumidifier in damp rooms to reduce moisture.
We've all seen mildew growing on shower tiles. That's the work of mold spores, which like to settle where it's warm and wet. Black mold, shown here, often grows in hidden areas as well, contaminating behind walls or below the floor.
The best defense is to keep your bathrooms clean and dry. Fix leaky faucets and other sources of water. Use vent fans after showering. And clean surfaces regularly with a bleach solution.
This is a favorite room for mold. If your refrigerator has a drip pan, pull it out and scrub it regularly. Standing water attracts mold. Old, moldy food can also trigger allergies.
Also, cover trash cans and store food in sealed containers to keep cockroaches away. These nighttime bugs are hard to see, and they trigger allergies in many people.
Air conditioning helps keep your home cool and dry, helping to fight allergens. But sometimes it can be part of the problem. As dust collects on the cooling coils, mold, like this cladosporium fungus, may begin to grow.
Keep dust out by installing a heavy-duty filter and changing it regularly. Window A/C units should be professionally cleaned and disinfected every year.