Hepa Fan Filter Box

thingiverse

A HEPA filter box I made to help with the dust in my tinkering space. I made the walls fairly thin for quicker printing while keeping them thick enough for some strength. I have two holes on the side of the box, larger one for a barrel jack socket and a smaller one for a toggle switch. You can use the switch to turn it on or off but I used it to switch between 12 volt and 9 volt. It takes a 140mm PC fan. I advice getting a fan splitter so you're not cutting the wire on the fan itself. Use a good fan, I'm using Phanteks 140mm fans and that's doing well. I tried a Fractal 140mm fan before the Phanteks and it was a waste of time. For a HEPA filter, it takes LV-h128 refills. Branded ones are fairly cheap and there are several third party ones on amazon. Should be relevant for a while. Install them with the Activated Carbon facing the fan with the fan blowing air out the back. If you don't care about damaging the filter a little, you can put some essential oils onto the filter itself for a nice smell. You'll also need 4 m4 screws to hold it together. I made this model fairly quickly to fit where I had room for it, I didn't plan on uploading it but it's working a lot better than I thought it would so I thought I'd share it. Enjoy -Lime