init6Heading into #wildfire season, found out about this cheap and effective method of DIY air filtering - https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box - gonna give it a try. #smoke sucks
ElwoodCityThese work great
Likely Jan LukasSeconded. You can also make them from pretty much any fan and in different configurations:
For example, it is far cheaper for me to acquire MERV-13 furnace filters in the size most commonly used here instead of the square filters.
I also make life easier for myself by constructing a frame from coroplast and tape (or hot glue -- either works) which makes swapping out filters a cinch.
1/3
Duct tape is easiest to remove from coroplast (but both masking tape and painters tape work fine) for securing and replacing filters.
Also: having a #coroplast #frame allows for making a custom holder for the top fan regardless of fan size/style.
Been using these for 4 years now and they are excellent.
2/3
@likelyjanlukas @ElwoodCity I moved to gaffer tape for most things. Very strong yet easy to remove without residue. Not that it'd matter much for this application probably
Yeah, gaffer tape is overkill and likely more expensive than other tapes. That said, yes it will work just fine and whatever you have easy access to is *always* the best. 😀
PS: Adding carbon filter material is also helpful in reducing the stench from VOCs in the smoke.
#IKEA #Fornuftig and related filter boxes/tables are premade and have affordable filters. Most models will also take a VOC carbon filter.
I've also successfully used IKEA filters for #AirQuality and #VOC #wildfire #smoke for smaller DIY air filters for awkward spaces such as windows.
Good luck! 🙂
3/3