How to Build a DIY Air Purifier for Your Home

As the winter season approaches, many people begin to gather inside more frequent, which means closer quarter for virus-containing droplets travel through the air. According to that CDC, EPAand OSHAgood ventilation—including a portable air purifier—is one thing You can add to your COVID Mitigation plan to reduce the risk of indoor virus transmission. YYou can buy an air purifier for between $150 and $300 — or you can build your own For only $65-$100.

Materials needed to make a DIY air purifier for your home

The Corsi-Rosenthal box, invented by Richard Corsi and Jim Rosenthal, is an effective air purification system that can help Remove virus droplets from the air by sucking air into its HEPA filters. For your For a DIY air purifier to work, it’s important to follow the directions carefully, as an air leak or filter facing the wrong way will reduce the effectiveness of the system.

The materials you will need for this project are duct tapefour MERV-13 air filtera 20-inch box fanthe box in which the fan is supplied, and a utility knife.

How to make a DIY portable air purifier

To build your box, glue the filters together by sewing the inside edges of the filters together with the filters lying flat and the arrow pointing towards you. Once the filters are hemmed along their edges, stand them up and join the edges of the last two with tape. At this point, all arrows on the filters should be pointing inward. Go around the outside of your box and seal the seams from the outside with your tape. Make sure the seams are gooddense and strong.

Next, Add a bottom to your box by placing the box that the fan came in on the bottom of the square you just made and sealing the seams there, just like you did with the four sides. The box should fit snugly against the edges of the air filters, but if there are gaps make sure you tape them up. This will give you the first five sides of your box.

Now take the fan and place it on top so that the airflow comes out of the box. If you’re not sure which direction you want your fan to go, turn it on to see which way it’s blowing the air. At this point you will likely have some gaps as the fan might have a slight curvature at the corner. You can use some small scraps of cardboard and cut them to fit the gap with your utility knife. Then glue them in and seal the edges Good. Next, use your tape to seal the fan just like you did on the sides and bottom.

The final result

What you should end up with is a cube whose top is Your fan blowing air out of the box and the bottom is your cardboard box, and the sides are MERV-13 filters with the arrows pointing inward. The fan draws in air, pushes it through the box’s filters, and blows out cleaner air. For more detailed instructions, see these video instructions Richard Korsione of the inventors of the box.