We spend 90% of our time indoors, yet indoor air can be 2-5 times more polluted than outdoor air. Here's how to improve the air you breathe.
Common Indoor Air Pollutants
- Dust and dust mites
- Pet dander
- Pollen
- Mold spores
- Volatile organic compounds (VOCs) from paint, cleaning products, furniture
- Carbon monoxide (from gas appliances)
- Biological contaminants (bacteria, viruses)
HVAC Solutions
Upgrade Your Filters
Standard fiberglass filters capture only large particles. For better filtration:
- MERV 8-11: Good for most homes, captures pollen and dust mites
- MERV 13-16: Hospital-grade, captures bacteria and some viruses
- HEPA filters: 99.97% effective at 0.3 microns (requires compatible system)
Higher MERV ratings mean more resistance—ensure your system can handle it.
UV Air Purifiers
UV-C lights installed in your HVAC system kill mold, bacteria, and viruses as air passes through. Effective and low-maintenance.
Whole-House Air Purifiers
Electronic air cleaners or media filters installed in ductwork provide superior filtration throughout your home.
Humidity Control
Ideal indoor humidity is 30-50%.
- Too humid: Promotes mold and dust mites
- Too dry: Irritates respiratory systems
Whole-house humidifiers or dehumidifiers maintain optimal levels.
Ventilation Improvements
Fresh Air Intake
Many modern homes are sealed tightly for efficiency, limiting fresh air. ERVs (Energy Recovery Ventilators) bring in fresh outdoor air while recovering energy from exhausted air.
Exhaust Fans
Run bathroom and kitchen exhaust fans to remove moisture and pollutants. Let them run 15-20 minutes after showering or cooking.
Simple Steps You Can Take
- Vacuum regularly with a HEPA-filtered vacuum
- Dust with damp cloths to capture rather than spread particles
- Control moisture - fix leaks promptly, use bathroom fans
- Limit chemical products - choose low-VOC paints and cleaners
- Don't smoke indoors
- Test for radon - especially in older homes
- Maintain gas appliances - ensure proper combustion and venting
Signs of Poor Indoor Air Quality
- Allergy symptoms that improve when you leave home
- Persistent odors
- Visible mold
- Excessive dust accumulation
- Respiratory issues among household members
Professional Assessment
If you're concerned about your air quality, professionals can:
- Test for specific pollutants
- Inspect ductwork for contamination
- Recommend appropriate filtration
- Identify moisture or mold issues
Clean indoor air supports better health, sleep, and overall well-being. Start with basic steps and upgrade as needed.