DIY Air Purifier w/ 2x120mm Case Fans : r/DIY_tech
My home made air filter fan. Looks like it's working... : r/Calgary
A follow up to the DIY air purifier thread- here's my toddler's room's box fan filter after 6 weeks of nighttime use. Glad to know it's reducing his environmental allergy symptoms this
Cheap air purifier : r/Frugal
YSK: Air purifiers for smoke : r/Portland
Box fan air purifier filter after 1 week of use during Campfire : r/sanfrancisco
Box fan air filter after 3 months and one particularly smoky day in Hollywood : r/LosAngeles
LPT: Box fan + 20 inch filter = cheap and effective indoor pollen filter. : r/Austin
Homemade air purifier. 2 filters and a box fan : r/mildlyinteresting
How Important is Filter Direction : r/AirPurifiers
Hepa Filter Companion Cube Box Fan : r/bayarea
Has anyone used a filter on a box fan before? How did it go? I figured it would be a good idea since AQ isn't the best in my basement. : r/gpumining
Air filter on box fan day 2. Wild fire smoke : r/interestingasfuck
Amazon.com: Lasko FF305 Air Flex 2-in-1 20-inch Box Fan and Air Purifier in One with MERV10 Air Purifying Filter for Cleaner Air and a Cooling Breeze : Home & Kitchen
better and cheaper than any air purifier on the market : r/pics
3D Printed HEPA+Charcoal Air Filter (Work in Progress) : r/3Dprinting
Air purifiers are expensive, and we had an extra vent filter. : r/redneckengineering
I wanted an air purifier for my allergies, but someone suggested spending $25 on a box fan and filter instead. Fingers crossed that it works! (Feat. concerned kitty) : r/Frugal
Do the DIY box fan filters work? Well, here's mine after just 1.5 days running in a closed bedroom (Greenwood area) : r/SeattleWA
DIY air purifiers a hot trend against wildfire smoke
Changed the filter on my home-made box fan filter yesterday; yikes! Instructions inside on how to make your own for about $30 to improve your indoor air quality. : r/SeattleWA
Social media and duct tape are helping people make DIY air purifiers that filter out wildfire smoke | AP News
LPT: Tape a 20x20" filter mesh to a window fan for a cheap DIY air filter that costs ~$20 : r/LifeProTips
DIY air purifier on a budget for people who got smoke inside their rooms/homes. : r/Calgary
Spare fan and good filters : r/madisonwi
How to Make a Box Fan Air Purifier: 3 Different Methods | Digital Trends
