The When Smoke is in the Air webpage from AirNow is intended for anyone living in areas impacted by wildfire smoke. It provides guidance on how to monitor local fire and smoke conditions, how to reduce smoke exposure both indoors and outdoors, and when to prepare for evacuation. The webpage emphasizes using tools like the Fire and Smoke Map to track changing air quality, understanding the Air Quality Index (AQI) to plan safe outdoor activities, and utilizing clean air rooms and HVAC systems to maintain indoor air quality.

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AirNow is a partnership of the U.S. Environmental Protection Agency (EPA), National Oceanic and Atmospheric Administration (NOAA), National Park Service, NASA, U.S. Centers for Disease Control and Prevention (CDC), and tribal, state, and local air quality agencies.