Most people spend 90% of their time indoors, yet indoor air can be 2–5x more polluted than outdoor air. Here's what you can do about it.
According to the EPA, indoor air can be two to five times more polluted than outdoor air — and in some cases, up to 100 times worse. Given that most Americans spend roughly 90% of their time indoors, the quality of the air inside your home has a direct impact on your health, comfort, and wellbeing.
Common Indoor Air Pollutants
The list of indoor pollutants is longer than most homeowners realize. Common culprits include:
- Dust mites and pet dander
- Mold and mildew spores
- Volatile organic compounds (VOCs) from paints, adhesives, and cleaning products
- Carbon monoxide from combustion appliances
- Radon seeping up from the ground
- Pollen tracked in from outside
How Your HVAC System Affects Air Quality
Your heating and cooling system plays a central role in indoor air quality. The air filter is your first line of defense, trapping particles before they recirculate through the home. A dirty or inadequate filter lets those particles pass through freely. Beyond the filter, dirty ductwork, a moldy evaporator coil, or a malfunctioning humidifier can all actively degrade your air quality.
Whole-Home Air Quality Solutions
There are several effective upgrades you can add to your HVAC system to dramatically improve the air you breathe at home:
- HEPA or high-MERV filtration — captures particles as small as 0.3 microns, including most bacteria and allergens
- UV germicidal lights — installed in the air handler, these neutralize mold, bacteria, and viruses in the airstream
- Whole-home dehumidifiers — maintain optimal humidity levels (30–50%) to discourage mold growth and dust mites
- Energy recovery ventilators (ERVs) — bring in fresh outdoor air without wasting conditioned air
Simple Steps You Can Take Today
You don't need to invest in a whole-home system to start improving your air quality. Replace your air filter on schedule, run a bathroom exhaust fan during and after showers, vacuum regularly with a HEPA-equipped vacuum, and open windows when weather permits to dilute indoor pollutants.
If you're concerned about your home's air quality, Satterlee can assess your current system and recommend solutions that fit your home and budget. Contact us to schedule a consultation.
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