nostr:npub1zdq4hc3s6ngdyla76gkr4rug906ex3nlmdzxnwn4mpr4ujdjypdq46wdfx 
My fan is noisy and gets on our nerves after a while, so I’m thinking of trying multiple CPU fans like these…might be better for a classroom: 

https://www.cleanairkits.com/

https://cdn.mastdn.ca/media_attachments/files/111/071/470/394/051/144/original/a89727740a20556f.jpeg