Box fan with 3M MERV 12 Filtrete filters on the front and back, duct taped. I have a small room, will this do the trick as a Corsi-Rosenthal box? Not sure why
Box fan air purifier filter after 1 week of use during Campfire : r/sanfrancisco
LPT: Tape a 20x20" filter mesh to a window fan for a cheap DIY air filter that costs ~$20 : r/LifeProTips
If you want an air purifier but only have $39, slap a 20x20x1 filter on the back of a box fan : r/lifehacks
Smoke is here: remember to check your filters for your home. : r/vancouver
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 filtration : r/BeginnerWoodWorking
Air filter on box fan day 2. Wild fire smoke : r/interestingasfuck
Spare fan and good filters : r/madisonwi
Air quality report : r/Louisville
YSK: Air purifiers for smoke : r/Portland
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
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
Box fan air filter after 3 months and one particularly smoky day in Hollywood : r/LosAngeles
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
How a MERV 13 Air Filter and a Box Fan Can Help Fight Covid-19 - Tex-Air Filters
Hepa Filter Companion Cube Box Fan : r/bayarea
LPT: Box fan + 20 inch filter = cheap and effective indoor pollen filter. : r/Austin
DIY air purifiers a hot trend against wildfire smoke
Furnace Filter, 4 months old and New : r/kelowna
DIY Air Filter Box Fan : r/woodworking
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
Air purifiers are expensive, and we had an extra vent filter. : r/redneckengineering
I finally got my hands on the Lasko FF305. I'm kind of baffled why this seems to be the only company that ships a box fan with an air filter built in.
Social media and duct tape are helping people make DIY air purifiers that filter out wildfire smoke
Cheap air purifier : r/Frugal
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
