We spend roughly 90% of our time indoors, yet indoor air can be 2-5 times more polluted than outdoor air. Understanding and improving your indoor air quality isn’t just about comfort — it’s about health.
Common Indoor Air Pollutants
1. Particulate Matter (PM2.5 and PM10)
From cooking, candles, fireplaces, dust
2. VOCs (Volatile Organic Compounds)
From paints, cleaners, furniture, air fresheners
3. Allergens
Dust mites, pet dander, mold, pollen
4. Carbon Dioxide (CO2)
Poor ventilation in crowded spaces
5. Mold and Mildew
Damp areas, leaks, condensation
How to Improve Indoor Air Quality
- Increase Ventilation - Open windows, use exhaust fans
- Control Pollution Sources - Low-VOC products, don’t smoke indoors
- Clean Regularly - HEPA vacuum, damp dusting, wash bedding
- Use Air Purifiers - HEPA filtration for allergens and particles
- Control Humidity - Keep between 30-50%
See our best air purifiers guide for top-tested models.
Related: Humidifier vs Dehumidifier