YSK: Air purifiers for smoke : r/Portland
If you wonder how a #10 filter on a box fan does for cleaning the air. I turned off the windows fans and closed the windows this morning and turned on the
My surprisingly effective shop air cleaner. Box fan, bungee cords, and a furnace filter. Works pretty well. : r/BeginnerWoodWorking
TIL that the HEPA filter was conceived during WWII to guard soldiers and scientists, especially those working on the Manhattan Project, from radioactive particles. : r/todayilearned
How to Make a Box Fan Air Purifier: 3 Different Methods | Digital Trends
Box fan filtration cube : r/woodworking
Reddit - Dive into anything
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
Corsi-Rosenthal Cube - Encycla
The box fan + air filter works. I can breathe in my home. : r/SALEM
Make this Corsi-Rosenthal Box DIY Air Purifier for cheap if you also live in a home with bad or no air filtration : r/ottawa
Homemade HEPA filter for tiny, dusty apartment. This is the result of 18” furnace HEPA filter + Box fan on about 10 hours per day for 1 month. Total price <$40; 6
DIY Wildfire Smoke Filter : r/Edmonton
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
DIY Air Purifier w/ 2x120mm Case Fans : r/DIY_tech
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
My janky swamp cooler for 100°+ days (box fan) : r/redneckengineering
Air filter on box fan day 2. Wild fire smoke : r/interestingasfuck
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
Spare fan and good filters : r/madisonwi
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
Social media and duct tape are helping people make DIY air purifiers that filter out wildfire smoke | AP News
3 months of using my homemade air purifier. : r/pics
