Attix 30 HEPA Vacuum, Wet-Dry, 1.34 HP, 8 US Gal. (30.3 Litres)High performance, increased productivity and lower maintenance cost InfiniClean filter cleaning technology automatically cleans the filter every 15 seconds to keep working environment dust free Durable and washable PTFE filter that ensures minimum 99. 9% filtration efficiency of fine dust particles Features 3 stage filtration technology for the highest level of safety, prolonging the life of the HEPA filter Same filter used for wet and dry collection