DIY Air Purifier using a Box fan

thingiverse

I live in a dusty part of Texas with spring allergies and wanted less dust in my home. I didn't want to spend all that coin on an off-the-shelf air purifier, so I built one with a 20-inch box fan and a 20x20x1 filter. I printed mine with generic Pla You need a fan and a filter the same size, a box fan is preferred. Then print the parts, bolt them to your fan, and add the filter. I used a Comfort Zone Model No. CZ200A 20-inch box fan. I used a $5.00 ac filter that filters dust and pollen, but you can buy filters that filter more things.