V-TUF H-Class Essential Cartridge Filter has HEPA H14 filter media for best filtration efficiency, ensuring the V-TUF MIDI & MIDI SYNCRO vacuum cleaners becomes fully compliant with all H-Class cleaning standards and regulations. The V-TUF MIDI vacs must always be used with this H-Class cartridge filter, securely fixed and sealed inside the machine, to ensure the dust extractor meets the HSEs minimum requirement of using H-Class rated equipment for the removal of hazardous particles and substances. Materials that are broken up, damaged or even disturbed, release fibres harmful particles into the air that have proven to cause serious diseases, when inhaled. So, using the V-TUF H Class Hepa Filter (VTVS7021) ensures full protection from hazardous dusts escaping back into the air and harming the lungs of the surrounding workforce. H Class Filtration is for extracting highly carcinogenic dusts and substances, formaldehyde, mould, germs, lead, nickel, tar and bacteria, so by using a V-TUF H