Were the male parts already opening? If not, no worries at all.

If unsure, do you have females you need to put in the room right away, or have you got a week or two?

If you need it right now, I'd simply spray all of the surfaces with some plain old water, since water kills pollen. (can add soap if it really needs cleaning anyway) Be careful of the electronics, tho.

If you are a couple of weeks away from needing the room, I wouldn't worry at all. Pollen becomes less and less viable over time.

HTH