The A15 EXP is an air-operated, hazardous location vacuum cleaner that meets the requirements for use in Class I, Group D, and Class II, Groups E*, F, and G and is ATEX-approved (EX) for zones 1, 2, 21, and 22. It is designed for the collection of dry materials. (Another version of the machine, the A15 EXPW, is designed for wet material collection). The vacuum is made of 304 stainless steel and features a grounding cable and clamp. HEPA or ULPA filtration is available.