Coating machines are surprisingly quiet except for the rush of air and film (or paper). There is also the background pump noise from the other room and the rumble of some odds and ends running as well.

If you were in the bombardment room you would hear the electrostatic discharge as a high pitched hiss and you would smell ozone and see the bright bluish UV (if the hood is off).

Not noisy at all IMHO.

And there are a lot of people on this earth far better than I am.