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
Reminder: Box Fan + HEPA filter = excellent air filter. : r/Frugal
Price-performance comparison of HEPA air purifiers and lower-cost MERV 13/14 filters with box fans for filtering out SARS-Cov-2 and other particulate aerosols in indoor community settings | medRxiv
Amazon.co.jp: POPO Replacement Filter Fan with Air Purifier Compatible Consumables (HP03/HP02/HP01/HP00/DP03/DP01) : Computers
8 hours of running the DIY air purifier I made. MERV 13 air filter. : r/bayarea
If you want an air purifier but only have $39, slap a 20x20x1 filter on the back of a box fan : r/lifehacks
The best air purifiers of 2021
What is Reddit's opinion of Whirlpool Whispure Air Purifier, HEPA Air Cleaner, AP51030K?
Wanting to make a DIY hepa (or merv?) air purifier. Does it matter if it goes on the front of back of the fan. : r/DIY
5 best quiet air purifiers of 2021, according to experts
Homemade air purifier. 2 filters and a box fan : r/mildlyinteresting
box fan air purifier reddit Off 61% - canerofset.com
DIY air filter - box fan + central heating air filter. replacement filter costs $6.49 : 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
If you want an air purifier but only have $39, slap a 20x20x1 filter on the back of a box fan : r/lifehacks
What is Reddit's opinion of Ionizer Purifier Fan, HEPA Air Filter,1950W Ceramic Heater Fan, 10 Speeds & 9 Hours Timer, 120 ° Oscillating Bladeless Fan , 33.5 inch Electric Heater ,with Remote
People Are Making DIY Air Purifiers to Cope With Wildfire Smoke Indoors
LPT: Tape a 20x20" filter mesh to a window fan for a cheap DIY air filter that costs ~$20 : r/LifeProTips
Hepa Filter Companion Cube Box Fan : r/bayarea
What is Reddit's opinion of Lasko 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 FF305?
DIY Air Purification Designs
How to Improve the Efficiency of the "Box Fan and MERV 13 Filter" Air Cleaner - Tex-Air Filters
