Pneumatic explosion proof/dust ignition proof vacuum can be used in a variety of applications where it is necessary to remove hazardous debris, petrochemicals and fine powder without sparking. It features a filtration system that can handle wet or dry collection. Main filter is available in stainless steel mesh or anti-static stainless steel blended polyester to assure conductivity. Vacuum can be equipped with optional grounded HEPA or ULPA filter retaining 99.999% of ultrafine particles including 0.12 microns. Additionally an optional exhaust venting system can be added to redirect hazardous vapors. Nilfisk-Advance America, Inc. 300 Technology Drive Malvern, PA, 19355