In an unregulated environment it's easy to overlook basic safety issues, and noise control is something that very few detailers and even fewer enthusiasts take seriously. This is worrying because regular exposure to moderate to high levels of noise in confined spaces (from machine polishers, vehicle dryers and vacuum cleaners, etc.) can permanently damage human hearing in a relatively short space of time. Please consider looking after your ears properly in future by wearing comfortable, inexpensive ear protection from 3M.