I was surprised that few people were wearing Dust Masks of any type or linen /cotton gloves in much of the video. Back in the 80's when I was in the Metalworking business as a youngster, we had both on all day long due to sanding and grinding operations going on around us all the time. The Cotton gloves were thin enough to allow easy gripping of sheetmetal and other metal items, but provided much more protection than just our bare hands.