When HN users recommended it
1 HN user recommended this in 2022, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2022, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
Big Clive made a video and wrote an OpenSCAD script[0] which allows you to 3D print a base and adapter to convert a regular 120mm computer fan into a "true" HEPA air purifier.
You might already have a spare 120mm fan laying around - I am using a $8 ARCTIC P12 fan[1] which is very quiet and is designed to work with high static pressure. The generic filters[2] are two for $17, (supposedly) H13 grade, available from a number of suppliers, and last a very long time. You could use them one at a time but I stack the two filters on top of each other and seal them with electrical tape for more surface area.
The fan isn't super powerful (56 CFM) and the appearance is not as polished as commercial models, but it does have a certain aesthetic to it. The area where I live rarely has any air quality issues but I have noticed it really cuts down on dust.
[0] https://www.youtube.com/watch?v=6Vmh2Ip2Vxg (script in the Description)
[1] https://smile.amazon.com/gp/product/B07GB16RK7
[2] https://smile.amazon.com/dp/B08N1FP2WT