Wildfire smoke poses a significant threat to indoor air quality, but proactive measures can mitigate its impact. The primary goal is to prevent smoke particles from entering your home and to filter any that do.

Sealing your home is crucial. Close and lock all windows and doors. Turn off ventilation systems that draw in outside air, such as whole-house fans, and consider temporarily shutting off your HVAC system. If you must use your HVAC, ensure the fan setting is on 'recirculate' and that the air filter is a high-efficiency one, like a MERV 13 or higher. It's recommended to change these filters more frequently during smoke events.

Air purifiers equipped with HEPA filters are highly effective at removing fine smoke particles. Place these in rooms where you spend the most time. For those without air purifiers or high-efficiency HVAC filters, a DIY solution involves attaching MERV 13 filters to a box fan. This setup can create a makeshift air cleaner. When smoke levels are severe, consider sheltering in a room with minimal windows and sealing the door with towels or tape. Monitoring air quality through local reports or apps can help you determine when to take these precautions. The EPA suggests that levels above 100 on the Air Quality Index indicate unhealthy air.

During wildfire events, it is important to limit outdoor activity. If you must go outside, wear a respirator mask, such as an N95, to protect your lungs. Staying informed about the air quality in your area is key to making timely decisions about protecting yourself and your family from harmful wildfire smoke.