08/25/2026
Wildfire smoke can travel far from the flames, creating poor air quality in communities many miles away.
Experts say one of the biggest risks comes from tiny particles in the air, which can contribute to short-term and chronic health issues.
When smoke levels are high, health officials recommend staying indoors and taking steps to keep indoor air as clean as possible.
If you have central air conditioning, use the highest level of filtration your system can handle. Filters rated MERV 13 or higher are ideal, and setting the system to recirculate can help limit outside air.
A portable HEPA air filter can also help. If you only have one, consider using it to create a “clean room” where you can spend most of your time.
Experts also recommend sealing gaps where smoky air can enter and avoiding sources of indoor combustion, including candles, fireplaces, and gas stoves.
Wildfire smoke can cause symptoms such as shortness of breath, chest tightness, headaches, and burning eyes or nose. Anyone wheezing, struggling to breathe, or in distress should seek emergency care.
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When the air is smoky from burning wildfires, health experts say to stay indoors. But there are steps you should take to keep the air clean inside your home.