Interest in air filters and purifiers is spiking in Southern ... approach is to attach one MERV filter to the back of a box fan, an idea laid out in a website from the Montana group Climate ...

Some early research suggests these DIY air cleaners, made from cardboard, tape, furnace filters, and a box fan, might be more effective in some ways than HEPA purifiers. Experts say they could ...

In 2018, I tested a popular claim: that sticking a furnace/HVAC filter on a standard box fan produces a useful DIY air purifier. I taped a 20-by-20-inch Honeywell FPR 9 filter to a Lasko 20-inch ...

The box uses four common household air filters for the sides — the kind you use for a home HVAC system — a 20-inch fan on top, cardboard, scissors, and duct tape to hold it all together.

The CR Box comprises four air filters commonly used in heating, ventilation, and air conditioning (HVAC); a cardboard base; and a box fan to draw air through the filters and toward the ceiling.

Air quality can be impacted by smoke from wildfires. Our reporter set out to build an air filter — in a style the EPA praised, using only things she already had at home.

a 20-inch box fan for the top, four common household filters for the sides, cardboard, scissors and duct tape. The fan pulls in air through the box’s filtered sides and pushes out clear air ...

But what if you can't get hold of an air purifier? Could you make your own? Actually yes; all you need is a box fan and a HEPA or high-quality filter. There are two types of air purifiers you ...

The CR Box comprises four air filters commonly used in heating, ventilation, and air conditioning (HVAC); a cardboard base; and a box fan to draw air through the filters and toward the ceiling.