Society · en

Is smoke in your home? Here's how to make an air purifier using a box fan

NPR · Jul 17, 2026, 3:07 PM UTC

Smoke from wildfires in Canada and Minnesota is sending air quality indexes to record levels, posing a hazard for millions of people. Here are tips for how to breathe easier in your home.

Wildfire smoke could impact your brain health. Here’s how

Wildfire smoke is like smoking 'half a pack a day.' Here's how to protect yourself

Republicans want to make your cell phone better — and freer

New study: One Chinese cyberattack could make your taps run dry

Canada fires prompt US air quality alerts as smoke blankets major cities

Ontario wildfires prompt Winnipeg air quality warning

Is smoke in your home? Here's how to make an air purifier using a box fan

Related index pages

Wildfire smoke could impact your brain health. Here’s how

Wildfire smoke is like smoking 'half a pack a day.' Here's how to protect yourself

Republicans want to make your cell phone better — and freer

New study: One Chinese cyberattack could make your taps run dry

Canada fires prompt US air quality alerts as smoke blankets major cities

Ontario wildfires prompt Winnipeg air quality warning