Bathroom

  • Ventilation. Install and use an exhaust fan to reduce moisture while taking baths or showers.
  • Floors. Remove carpeting and use tile, vinyl, wood or linoleum flooring. Use washable rugs.
  • Walls. Remove wallpaper and install tile, or paint walls with mold-resistant enamel paint.
  • Shower and tub. Towel-dry the tub and enclosure after use. Scrub mold from tub, shower and faucets with bleach. Clean or replace moldy shower curtains and bathmats.
  • Toilet and sink. Scrub mold from plumbing fixtures. Repair leaks.

Basement

  • Flooring. Remove moldy or water-damaged carpeting. If possible, use concrete, vinyl or linoleum flooring.
  • Furniture. Consider replacing upholstered sofas and chairs with furniture made of leather, wood, metal or plastic.
  • Foundation, windows and stairwells. Check for and repair any sources of leaks or water damage.
  • Air quality. Use a dehumidifier to reduce dampness, and clean it once a week.
  • Storage. Store collectibles and clothes in plastic storage bins.
  • Clothes dryer. Vent moisture outside.

Entire house

  • Temperature and humidity. Hot, humid houses are breeding grounds for dust mites and mold. Maintain temperature between 68 F (20 C) and 72 F (22 C) and keep relative humidity no higher than 50 percent. Clean or replace small-particle filters in central heating and cooling systems and in room air conditioners at least once a month.
  • Pests. Control cockroaches and mice with inexpensive traps from the hardware store. If that's not effective, hire a professional exterminator. To remove allergy-triggering insect and mouse residue, thoroughly vacuum carpeting and wash hard surfaces. To prevent re-infestation, seal cracks or other possible entryways.
  • Mold. Close doors and windows during warm weather and use air conditioning and dehumidifiers. Remove nonwashable contaminated materials such as carpeting. Clean washable material with a solution of 5 percent chlorine bleach and wear a protective mask when cleaning away mold. Check the roof and ceilings for water leaks.
  • Weekly cleaning routine. Damp-mop wood or linoleum flooring and vacuum carpeting. Use a vacuum cleaner with a small-particle or a high-efficiency particulate air (HEPA) filter. Use a damp cloth to clean other surfaces, including the tops of doors, windowsills and window frames. If you have allergies, either wear a dust mask or get someone who doesn't have allergies to do this job. Change or clean heating and cooling system filters once a month.
  • Smoking. Don't allow smoking anywhere inside your house.
Apr. 13, 2014 See more In-depth