The Omega H13 HEPA (high efficiency particulate air) certified system VACOHCS is a great immediate containment option for hazardous particulate applications. This certified system features a HEPA filter that has been individually tested and HEPA certified to EN 1822. The certified HEPA filter is also supplied with a test certificate that verifies matching serial numbers and efficiency. This certified HEPA vacuum has three levels of filtration, self-storage and contained accessories, 1000 hour rated Ametek Advantek II motor and 25" detachable power cord. The certified one-gallon HEPA filter has 3 layers of 56 pleat media. The three layers consist of one cellulose layer and two glass layers. The certified HEPA filter captures everything from hazardous particulate to lead paint dust/chips-RRP (renovation, repair and painting), cement dust, silica dust, engineered stone, mold, etc. The Omega certified system also comes with a heavy-duty retention plug and chain for permanent maximum spill and leak protection when transporting or storing. The tool box structure and self-contained accessories makes this vacuum convenient for mobile technicians.