05/07/2026
During a wildfire, smoke can make the outdoor air unhealthy to breathe. Local officials may advise you to stay indoors during a smoke event. However, you should be aware that some of the smoke from outdoors can enter your home and make it unhealthy to breathe indoor air, too.
Visit the Wildfires and Indoor Air Quality (IAQ) website for information on how wildfire smoke affects indoor air quality, how to prepare for fire season, how to reduce your smoke exposure, and how to reduce your exposure from ash indoors after a wildfire smoke event.
This collection of pages provides helpful information to reduce your exposure to wildfire smoke inside your home.