Correction: (March 25, 2025) In the thirteenth paragraph, “within 3 to 4 feet (91 to 120 centimeters)” should be “within 8 feet (244 centimeters).” An edit has been made in the press release to ...

As students return to school and cold and flu season begins, researchers are studying ways to improve indoor air quality and ...

A Corsi Rosenthal Box combines common air filters with a box fan to create a practical DIY air cleaner. The simple design ...

Building a Corsi-Rosenthal box portable air filter comes down to duct-taping together a set of furnace filters and a box fan. Douglas Hannah, CC BY-ND One afternoon, a dozen Arizona State University ...

A cabin air filter is behind the dashboard and cleans the air coming into your car’s interior through the heating, ventilation and air-conditioning systems. It’s recommended to change your filter ...

Do-It-Yourself (DIY) air cleaners, made with a box fan and MERV 13 air filter, are a cost-effective method for reducing smoke concentrations. Only use newer, certified box fans with added safety ...

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...

New York, and other major cities on the eastern seaboard are currently blanketed in smoke from a massive outbreak of wildfires in Canada. Air quality levels are reaching their worst ever recorded ...

For many people in the U.S., hazy skies and unhealthy air quality have become routine hazards. Just last month, the smoke from hundreds of wildfires in Canada and northern Minnesota drifted thousands ...