Homemade air purifiers can filter air faster, making them an affordable alternative to more expensive commercial products.

Smoke particles carried by the wind infiltrate homes, schools, and offices, posing serious health risks. To help solve this, ...

and a box fan to draw air through the filters and toward the ceiling. Because the components are relatively inexpensive, the CR Box is a fraction of the cost of a HEPA air filter. As Corsi highlights ...

and a box fan to draw air through the filters and toward the ceiling. Because the components are relatively inexpensive, Corsi says the CR Box is a "fraction" of the cost of a HEPA air filter. He and ...