This series of explosion proof vacuum cleaner is electric, which is suitable for collecting explosive dust in Zone I & Zong 2 area of explosive gas environment and Zone 21 & Zone 22 area of explosive dust environment. For example aluminum powder, magnesium powder;gunpowder and so on.lt is widely used for aviation, aerospace, military; machinery processing, 3D metal printing and other industrial. It is used for heavy industry environment for a long time continuous operation.