Genuine HEPA vacuum that can be worn comfortably as a backpack. The model HEPA ProPack 6 is approved for EPA RRP regulations for removal of lead based paint particles. It also meets OSHA requirements for reducing permissible levels of hazardous airborne materials in schools, hospitals and other public areas. Don’t be misguided by competitive backpack vacuums claiming to have HEPA filtration. This backpack is a genuine “HEPA Vacuum”. A genuine “HEPA Vacuum” must have a HEPA filter that is individually tested and certified at a minimum efficiency of 99.97% at .3 microns. In addition, the HEPA filter system including HEPA filter, cloth pre-filter and disposable paper bag must be modular or drop-in style. This is the only “fail-safe” method to prevent from any accidental bypass of dangerous dust that may contaminate the air.