Element Set-HEPA (2 filters) - fits the Attix 30 and Attix 50 models with the
Extreme Clean (XC) self-cleaning filter system. These are H-class
HEPA elements and come with a certification. Nilfisk recommends
the use of a filter bag with all of their HEPA filters to protect
the filter element(s) and for optimum filtration. 5-packs of bags are available separately.