This guide is general information, not medical advice. If you have health concerns, please consult a medical professional.
Ventilation
Bringing in fresh air and exhausting stale, moist air is one of the simplest ways to improve indoor air. Use kitchen range hoods and bathroom fans that vent outdoors.
Aim for 30–50% relative humidity
The U.S. EPA recommends keeping indoor humidity below 60%, ideally 30–50%.
Filtration
Upgrading HVAC filters (following your system's specifications) and using portable HEPA air cleaners can reduce airborne particles.
Clean air at home is mostly habits: ventilate, control moisture, filter and reduce sources.
AirCare 365 · Bay Area
Want real numbers for your home?
Inspection, lab-analyzed air samples and a digital report. $520 online, $0 today.
Source control
The EPA notes that reducing sources — fixing moisture problems, choosing low-VOC products and storing chemicals properly — is usually the most effective approach. Testing helps you know which sources matter in your home.
Want measured information about your home?
AirCare 365 provides indoor air quality and mold and indoor air quality testing across the Bay Area.
Sources
Serving San Francisco, San Mateo, Menlo Park, San Jose, Sunnyvale, Palo Alto, Oakland, Fremont and the rest of the Bay Area.
Read next
- Indoor Air Quality Basics for Bay Area Homes
- Indoor Humidity Levels: What Range to Aim For
- Wildfire Smoke and Indoor Air in the Bay Area
- How to Test Air Quality in Your Home
Looking for a visit? Explore Bay Area home air quality testing.