I tried the single-filter design some years ago, and it worked pretty poorly. It didn’t seem to do a good job of cleaning the air, and it stressed out the motor a lot. I’d consider this 4-filter design for the future.
Comment on Air Purification
ProdigalFrog@slrpnk.net 3 weeks ago
Personally I use a single 4" thick HVAC filter taped to the back of a box fan, which has similar advantages to the Corsi box, but in a smaller footprint, and allows it to still be pointed at things besides the ceiling.
The 4" thick filter has far more surface area than a single 1", giving it much less flow resistance, so no danger of potentially overheating/straining the motor.
MaximilianKohler@lemmy.world 2 weeks ago
- ProdigalFrog@slrpnk.net 2 weeks ago
Was it a 1" thick filter, or 4" thick?
MaximilianKohler@lemmy.world 2 weeks ago
Probably a 1". I don’t recall seeing a 4". I just checked Target.com, and they only have 1" filters in stores. Where did you get the 4"?
- ProdigalFrog@slrpnk.net 2 weeks ago
Off ebay (though I’ve seen thicker ones in hardware stores too), they should pop up from searching 20x20x4 Merv filter.
The thicker ones are much freer flowing compared to the thin ones due to their increased surface area, making them comparable to a Corsi box, but easier to move around.
greatwhitebuffalo41@slrpnk.net 3 weeks ago
This is also a great idea