NewsNBC Chicago – LocalJuly 17, 2026Illinois
How to Keep Wildfire Smoke Out of Your Home
Health experts warn that wildfire smoke can easily enter homes, potentially causing respiratory and heart health issues. This guide outlines practical steps to seal your home and filter indoor air during periods of poor air quality.
Read the full story at NBC Chicago – LocalWhy It Matters
Residents in the Chicago area face ongoing air quality alerts that may impact indoor air safety, requiring specific adjustments to and ventilation systems to reduce exposure to fine particulate matter.
Key Facts
- Wildfire smoke can enter homes through open windows, doors, bathroom/kitchen fans, and HVAC systems.
- Fine particles from smoke can cause burning eyes, runny nose, bronchitis, and aggravate chronic heart or lung conditions.
- Smoke, soot, and ash may remain inside homes for several weeks after outdoor air quality improves.
- Keep windows and doors closed during air quality alerts.
- Run bathroom and kitchen exhaust fans only when necessary to avoid pulling outdoor air inside.
- Set HVAC systems with fresh air intakes to 'recirculate' mode or close the outdoor intake damper.
- For evaporative coolers, cover outside air intakes with MERV 13 high-efficiency filters or use sparingly.
- For window air conditioners, close the outdoor damper or avoid use if the damper cannot be sealed.
- Single-hose portable air conditioners should be used sparingly as they may pull outdoor air inside.
- Ensure seals around window-mounted air conditioning units are as tight as possible.
Who's Mentioned
locationChicago“The geographic area currently affected by hazardous air quality.”organizationPrecision Today“An HVAC company providing expert advice on indoor air quality.”personAndrew Bland“Service manager at Precision Today.”organizationEnvironmental Protection Agency“Provided guidance on the health risks of indoor smoke exposure.”