My surprisingly effective shop air cleaner. Box fan, bungee cords, and a furnace filter. Works pretty well. : r/BeginnerWoodWorking
DIY Wildfire Smoke Filter : r/Edmonton
Hepa Filter Companion Cube Box Fan : r/DIY
8 hours of running the DIY air purifier I made. MERV 13 air filter. : r/bayarea
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
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
Box fan air purifier filter after 1 week of use during Campfire : r/sanfrancisco
Box fan filter mounting clips; no wasted tape and printed in under 30min : r/3Dprinting
The box fan + air filter works. I can breathe in my home. : r/SALEM
Reddit - Dive into anything
How a MERV 13 Air Filter and a Box Fan Can Help Fight Covid-19 - Tex-Air Filters
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
Social media and duct tape are helping people make DIY air purifiers that filter out wildfire smoke | WFXRtv
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
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.
I built this monstrosity of an air purifier, out of 2 filters, a box fan and boredom : r/DiWHY
Box fan filtration cube : r/woodworking
The filter to my Air Purifier after >2 months of use. One of my favorite purchases : r/CleaningTips
How to build DIY box fan air purifier for $60 : r/DIY
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
Made an air purifier from a box fan, an air filter, and some duct tape. : r/redneckengineering
A Variation on the "Box Fan with MERV 13 Filter" Air Cleaner - Tex-Air Filters
Box fan air filter after 3 months and one particularly smoky day in Hollywood : r/LosAngeles
How to Make a Box Fan Air Purifier: 3 Different Methods | Digital Trends
The Cuboid: A DIY air purifier that's better than a box-fan
