MONTANA - With the wildfires burning across Montana, there's a lot of smoke and haze floating around the Treasure State, which can make going outdoors unpleasant or uncomfortable. - So, ...

The Corsi-Rosenthal box is an inexpensive air filter you can easily make yourself using a box fan. Learn how they work and get instructions for how to make one.

We used the same test for our DIY box-fan air purifier. Using a particle counter, we measured the change in particle concentration in the chamber as the fan ran for 15 minutes at its highest speed.

To mediate this issue, she recommends a DIY method using two air filters with a minimum efficiency reporting value (MERV) rating of 13 or above, and a 20-by-20 box fan, which are then arranged and ...

Grace Turner, 31, built her box fan purifier for her home in Rochester, New York, after picking up the trick from living in Salt Lake City. She shared her DIY box on TikTok where she said the air ...

Here's how to transform your boring box fan into a colorful rainbow with a viral DIY hack. It's fun, easy, and perfect for brightening up any space.

The boxes, constructed of widely available fans, filters, cardboard and tape, have become popular during the pandemic as people have sought ways to clean indoor air. (Myung J. Chun / Los Angeles ...

Grace Turner, 31, built her box fan purifier for her home in Rochester, New York, after picking up the trick from living in Salt Lake City. She shared her DIY box on TikTok where she said the air ...

And a box fan – the $25 version found at most big-box retailers – sits on top, sucking air through the filters and up through the box. Explore how to build Corsi-Rosenthal Box by visiting ...

In her video, which has amassed more than 600,000 views, Robertson duct tapes four 20-by-20 air filters into a box shape and attaches the fan on top. The whole apparatus costs under $100.