Indoor Air Quality | California Air Resources Board

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Indoor Air Quality

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Our health is improved and protected when we identify and reduce sources of indoor air pollutants. CARB's Indoor Air Quality and Personal Exposure Assessment Program sponsors and conducts research, develops green building standards and indoor air quality guidelines, regulates indoor air cleaners, and provides educational materials to the public.
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Air Cleaners

Portable indoor air cleaning devices sold in California must be certified by CARB to meet an ozone emission limit and electrical safety standards. Check the list of certified air cleaners before you buy. Whole-house, in-duct electronic air cleaners may also emit ozone, but are not currently covered by the regulation. CARB recommends you check with manufacturers about ozone produced by in-duct devices prior to purchase.

Find Certified Air Cleaners

Photo of good air cleaners

Air Cleaner Information

Learn how to select safe & effective air cleaners

kitchen cabinets

Formaldehyde in materials and products

cooking on stove

Cooking Emissions

Reduce indoor air pollution from cooking

Air Cleaners and Ozone Generating Products

Air Quality in Child Care Facilities

Children and Air Pollution

Indoor Air Quality Research

Air Cleaners for Indoor Smoke Removal

CARB Environmental Justice Research

Green Buildings & Indoor Air Quality

Car and Bus Exposure Studies

Asthma and Air Pollution

What can you do to reduce indoor pollutant sources and exposures?

Buy wood products and furniture that meet California’s composite wood regulation
Ask for and buy low-formaldehyde consumer products
Turn on the range hood when cooking, especially when using a gas stove
Avoid or reduce candle, incense, and wood burning
Use ‘green’ cleaning products
Clean out old pesticides, solvents, and cleaning products (dispose of them properly)
Use integrated pest management (IPM) around your home instead of pesticides
Use a high efficiency particulate arrestance (HEPA) filter in your HVAC system

EXTERNAL LINKS

California Dept. of Public Health Indoor Air Quality Program

California Dept. of Consumer Affairs

Residential Renters’ Rights & Responsibilities

California Office of Environmental Health Hazard Assessment

Related Programs

Air Cleaners & Ozone Generating Products