Nortech Vacuum Products' ATEX Approved Pneumatic Vacuums for hazardous locations eliminates the threat of static electricity by combining static conductive design with inherently safe pneumatic vacuum technology. They meet the requirements for use in Class I, Group A, B, C and D; and Class II, Groups E, F and G. THe vacuums also hold ATEX approval for zones 1, 2, 21, and 22. Regular vacuums can unintentionally create static electricity that can be dangerous in locations with perilous vapors or combustible dust.