I have an electric rechargeable air duster that I use regularly for cleaning my keyboard, desk, etc and it works great. But I found it hard to get into certain spots that are narrow and thin. For situations like that, I'd need to resort to using a traditional compressed air duster, like this one:
https://www.pbtech.co.nz/product/TOLEDT2000/ednet-Power-Clea…
I'd rather not having to keep buying the throw-away compressed air dusters. I did some research and couldn't find any electric ones that come with a long thin nozzle like that. Only option I can think of is to 3D print the nozzle myself, but I'd then need to invest in a 3D printer just for this. Would appreciate it if anyone has any recommendations.
Just a thought: rather than blow all that dust into the air, have you considered a vacuum with brush attachment? That's what I use when I clean my keyboard (far less often than I probably should… which reminds me, I'm overdue for a clean 😅).
But otherwise, you could check out your local makerspace (if you have one nearby), and some community libraries also have 3D printers available. Or ask on Geekzone. But either way you're also going to have to design said custom nozzle. Do you have 3D modelling experience?