As much of the northern and eastern US finds itself enveloped in haze stemming from Canadian wildfires, Engadget has a timely how-to for building your own box air fan.

Build an air cleaner at home All you need is a box fan, good air filters and some duct tape, and you’re in business. NPR has previously posted a design and guide to building an air purifying cube ...

Box fans in windows can keep your home cool at a lower cost than AC if you face them in the right directions. Here's what to know this summer.

The thing to remember about box fans is that they're great for pushing hot air out of your home. Here's how to work that to your advantage.

Should you point your box fan toward the outside or inside of a room? Here's how to beat the heat and save money.

A large area of greater Los Angeles had unhealthy air Friday, due to particulate matter from large wildfires. Here are tips for breathing cleaner air indoors if it's smoky outside.