Just compared two ways to clean a laptop fan and one was way faster
Had a gaming laptop in the shop with bad overheating. I used compressed air first, but the temps only dropped a little. Then I took the whole heatsink assembly out and used a soft brush with some isopropyl alcohol on the fins. The dust was packed in there like clay. After that, the idle temp went from 70C down to 45C. What's your go-to method for a really clogged fan you can't just blow out?