LTO Tape drives that run their cooling at 100 percent power when idle and have no particle filters https://news.ycombinator.com/item?id=34502596
Running fans at 100% is slightly weirder, but also not unheard-of.
I don't think I've seen a drive failure because of it though. I think the last time the robot failed it was mostly because of the autoloader not working properly.
It also depends on your cooling type as well. Most of the places I worked had a closed loop system, either hot/cold aisle, or radiators on the front of the rack.
THe "zombie" rooms did pull air directly from the outside world, but they had massive filters on them. dust wasn't really a problem for us.