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Health Officials Advise Running AC With Filters During Wildfire Smoke
Officials say central air, MERV 13 filters and recirculation can help reduce hazardous smoke indoors as wildfire smoke lingers across multiple states.
- On Friday, July 17, 2026, health officials advised residents to stay indoors and use central air conditioning with high-level filtration as wildfire smoke from Canada obscured the Washington Monument.
- Wildfire smoke from Canada has settled over parts of the U.S. for days, creating hazardous air filled with tiny particles that experts say trigger short-term and chronic health issues.
- Experts recommend setting central air conditioning to recirculate and using filters rated MERV 13 or higher; The EPA validated DIY box fan filters made with four 20-inch filters for removing fine pollution particles.
- Dr. Khalilah Gates, a lung doctor with Northwestern Medicine, warned that exposure causes chest tightness and shortness of breath, advising immediate emergency care if wheezing or unable to catch your breath.
- For those with limited resources, researcher Jess Downey of the University of Oregon suggests using a single portable air filter to create a 'clean room' where you can spend most of your time.
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How to keep the air inside your home clean during wildfires
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.
·New York, United States
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Should You Run Your AC During Wildfire Smoke? Experts Offer Tips as Air Quality Turns Hazardous This Week
Learn how to safely use air conditioning during wildfire smoke events with expert advice on HVAC settings, air filters, and protective measures to maintain indoor air quality.
·New York, United States
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Total News Sources64
Leaning Left23Leaning Right4Center35Last UpdatedBias Distribution57% Center
Bias Distribution
- 57% of the sources are Center
57% Center
L 37%
C 57%
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