Hello! Everyone knows the danger of industrial dust and its ability to cause various negative effects on human health! By the way, when I officially worked as a blacksmith in a trolleybus depot (and this was the case), we were given two packs of milk a week for harmfulness! In the blacksmith workshop, dust appears at an incredible rate. Dust from coal, slag, cleaning and machining of metal, scale, etc. We used essentially a household vacuum cleaner (household) from Karcher, but unfortunately it expired, and we decided to look at something more serious and designed for more severe operating conditions. It was also important to buy a vacuum cleaner capable of cleaning without a dust bag every day! Enjoy watching everyone and take care of yourself)