California Air Resources Board

The following substances can pollute indoor air:

• Cooking Emissions
• Formaldehyde
• Ozone
  • What is Ozone?
  • Health & Environmental Effects of Ozone
  • Air Quality Standards for Ozone
  • Ozone Generating Consumer Products
  • California's Air Cleaner Regulation (AB 2276) (to limit the amount of ozone produced from indoor air cleaning devices)
  • List of CARB-Certified Air Cleaning Devices (that meet CARB's ozone emission safety standard)
• Per- and Poly-Fluoroalkyl (PFAS)
  • U.S. EPA: Basic Information on PFAS
• Smoke
• Wildfire Smoke
  • Protecting Yourself from Wildfire Smoke