A systematic modeling study of simple air cleaners using a box fan shows these inexpensive units can greatly decrease the amount of airborne virus in these spaces, if used appropriately. Improved ...

Richard Corsi demonstrates the airflow of a low-cost, DIY air cleaner that can remove indoor pollutants such as smoke particles and respiratory particles. It may also reduce the spread of airborne ...

An old axiom reminds us that an ounce of prevention is worth a pound of cure. Here's how top technicians apply that sentiment to routine air filter replacements. The savvier techs I work with employ a ...

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 ...