David Elfstrom 🍁 @davidelfstrom.bsky.social · 15/01/2025Will definitely support this!North Box Systems@northboxsystems.bsky.socialOur fundraising campaign to develop a silent air purifier that uses off-the-shelf, non-proprietary filters has started! You can help us by sharing, making a contribution of any size or selecting a package that includes one of our DIY kits: igg.me/at/n8zLwkwyT...igg.mePOLARIS - A Better Air Purifier for SchoolsA silent PC-fan based air purifier solution that uses off-the-shelf furnace filters. | Check out 'POLARIS - A Better Air Purifier for Schools' on Indiegogo. 2168
