According to the EPA, indoor air can be 2–5 times more polluted than outdoor air. Since the average American spends 90% of their time indoors, the quality of your home's air directly affects your health. Common indoor pollutants include dust, pollen, pet dander, mold spores, volatile organic compounds (VOCs), and even carbon monoxide.
Signs of Poor Indoor Air Quality
How Your HVAC System Affects Air Quality
Your HVAC system circulates all the air in your home multiple times per day. It can either improve or worsen your air quality depending on its condition:
Positive: A well-maintained system with quality filters removes dust, pollen, and allergens from your air with every cycle.
Negative: A neglected system with dirty filters, moldy ductwork, or a contaminated evaporator coil can actually distribute pollutants throughout your home.
Steps to Improve Indoor Air Quality
Upgrade your air filter — Move from a basic fiberglass filter (MERV 1–4) to a pleated filter (MERV 8–13) for significantly better particle capture.
Change filters regularly — Every 30–90 days, more often during pollen season or if you have pets.
Schedule duct cleaning — If your ducts haven't been cleaned in 5+ years, they may harbor dust, mold, and debris.
Control humidity — Keep indoor humidity between 40–50% to discourage mold and dust mites. Use exhaust fans in bathrooms and kitchens.
Ventilate your home — Open windows when weather permits to bring in fresh air. Use exhaust fans to remove pollutants from cooking and bathing.
Consider air purification — Whole-home air purifiers, UV germicidal lights, and advanced filtration systems can dramatically improve air quality.
Maintain your HVAC system — Regular professional maintenance includes cleaning coils, checking for mold, and ensuring your system is helping — not hurting — your air quality.
Special Considerations for Georgia
Georgia's climate creates unique air quality challenges:
These factors make regular filter changes and professional maintenance especially important for Georgia homeowners.
Concerned about your indoor air quality? Call All Seasons at (770) 809-1355 for an assessment. We serve Carrollton, Villa Rica, and Newnan.