Air Quality
The Complete Guide to Indoor Air Quality in Bay Area Homes
March 22, 2024•12 min read
We spend about 90% of our time indoors, yet indoor air can be 2-5 times more polluted than outdoor air. In the Bay Area, wildfire smoke adds another challenge. Here's your comprehensive guide to breathing cleaner air at home.
Understanding Indoor Air Pollutants
Common indoor air quality issues include:
- Dust and dust mites
- Pet dander
- Pollen from outdoors
- Mold spores
- VOCs from cleaning products and furnishings
- Cooking particles
- Wildfire smoke (seasonal)
For wildfire-specific advice, see our detailed wildfire season HVAC guide.
Common indoor air quality issues include:
- Dust and dust mites
- Pet dander
- Pollen from outdoors
- Mold spores
- VOCs from cleaning products and furnishings
- Cooking particles
- Wildfire smoke (seasonal)
For wildfire-specific advice, see our detailed wildfire season HVAC guide.
Start With Your HVAC Filter
Your HVAC filter is your first line of defense. Consider upgrading from a basic fiberglass filter (MERV 1-4) to a pleated filter with MERV 8-13 rating. Higher MERV ratings capture smaller particles. Change filters monthly during high-use seasons - this is a key part of regular HVAC maintenance.
Your HVAC filter is your first line of defense. Consider upgrading from a basic fiberglass filter (MERV 1-4) to a pleated filter with MERV 8-13 rating. Higher MERV ratings capture smaller particles. Change filters monthly during high-use seasons - this is a key part of regular HVAC maintenance.
Control Humidity
Bay Area homes often deal with humidity issues - too much near the coast, too little inland during summer. Ideal indoor humidity is 30-50%. Below 30% causes respiratory irritation. Above 50% encourages mold and dust mites. Your HVAC system plays a crucial role - learn more about humidity control in our central AC vs mini-split comparison.
Bay Area homes often deal with humidity issues - too much near the coast, too little inland during summer. Ideal indoor humidity is 30-50%. Below 30% causes respiratory irritation. Above 50% encourages mold and dust mites. Your HVAC system plays a crucial role - learn more about humidity control in our central AC vs mini-split comparison.
Ventilation Matters
Modern homes are well-sealed for energy efficiency, but this traps pollutants inside. Solutions include:
- Opening windows when outdoor air quality is good
- Using bathroom and kitchen exhaust fans
- Installing an ERV (Energy Recovery Ventilator) for continuous fresh air
We cover ventilation in different home types in our new construction HVAC guide.
Modern homes are well-sealed for energy efficiency, but this traps pollutants inside. Solutions include:
- Opening windows when outdoor air quality is good
- Using bathroom and kitchen exhaust fans
- Installing an ERV (Energy Recovery Ventilator) for continuous fresh air
We cover ventilation in different home types in our new construction HVAC guide.
Air Purification Options
For more aggressive air cleaning, consider:
- HEPA Air Purifiers: Capture 99.97% of particles as small as 0.3 microns
- UV Germicidal Lights: Kill bacteria and mold in your HVAC system
- Whole-House Air Cleaners: Integrate with your HVAC for comprehensive filtration
Our air quality services page explains the options we install.
For more aggressive air cleaning, consider:
- HEPA Air Purifiers: Capture 99.97% of particles as small as 0.3 microns
- UV Germicidal Lights: Kill bacteria and mold in your HVAC system
- Whole-House Air Cleaners: Integrate with your HVAC for comprehensive filtration
Our air quality services page explains the options we install.
Bay Area-Specific Challenges
Our region faces unique air quality issues:
- Wildfire smoke during fire season (see our wildfire guide)
- Year-round pollen (covered in our allergy season guide)
- Ocean humidity in coastal areas
- Construction dust in growing communities
Our region faces unique air quality issues:
- Wildfire smoke during fire season (see our wildfire guide)
- Year-round pollen (covered in our allergy season guide)
- Ocean humidity in coastal areas
- Construction dust in growing communities
Carbon Monoxide Safety
If you have gas appliances, CO detection is critical. We've written a detailed carbon monoxide safety guide that every homeowner with a gas furnace should read.
If you have gas appliances, CO detection is critical. We've written a detailed carbon monoxide safety guide that every homeowner with a gas furnace should read.
When to Get Professional Help
If household members have respiratory issues, allergies, or asthma, professional air quality assessment can identify specific problems. Contact us for an evaluation of your home's air quality needs.
If household members have respiratory issues, allergies, or asthma, professional air quality assessment can identify specific problems. Contact us for an evaluation of your home's air quality needs.