Residential Plumbing & HVAC Experts

How to Start Improving Indoor Air Quality in Every Room

Considering the fact that the average American spends around 90 percent of each day indoors, it’s important to think about the quality of your indoor air. Polluted air can cause allergic reactions, respiratory ailments, and discomfort in the form of headaches, congestion or nausea. Common sources of indoor air pollution include pet dander, mold, volatile organic compounds, mold and dust mites. Improving indoor air quality in every room in your home is easier than you think. Following is a guide to get you started.


  • Pets. Avoid sleeping with pets in the bedroom, keeping them out altogether if possible.
  • Air cleaners. A whole-home air cleaner can help you breathe easier whether you’re asleep or awake.
  • Bedding. Invest in allergen-proof pillows and mattress covers, and wash them and your bedding in hot water each week.


  • Appliances. Prevent mold growth in your refrigerator by wiping away excess moisture and periodically cleaning the seals around the door. Use the exhaust fan above your stove when cooking, and make sure it vents outside, rather than to the attic.

Living Room

  • Plants. Place aquarium gravel around the base of houseplants to reduce mold and dust.
  • Furnishings. Keep pets off of soft furniture to reduce dander.


  • Ventilate. Use the exhaust fan when bathing or showering to reduce excess moisture and prevent mold and mildew.
  • Lose the mats. Toss old, moldy mats and shower curtains.
  • Walls. Choose tile over wallpaper or paint with enamel-based, mold resistant paint.

Whole Home Tips

  • Control humidityOne of the easiest ways to go about improving indoor air quality in every room is by keeping humidity levels between 30 and 50 percent. At these levels, mold and dust mite growth are inhibited.
  • Keep things neat. Use a vacuum with a HEPA filter and dust with microfiber cloths to trap, rather than spread, dust.
  • Maintain. Change your air filter every four to six weeks, and schedule annual preventive maintenance each spring and fall.

For more tips on improving indoor air quality in every room in your home, call Sherlock Plumbing, Heating & Air. We serve homeowners in San Diego and surrounding areas.