All vacuum cleaners produce exhaust air, which passes through a filter before it leaves the cleaner. If the filter is inefficient the expelled air can redistribute particles back into the room!
Because Miele cleaners have excellent filtration throughout the system - from the HyClean dustbag to the motor and exhaust filters - they can pick up particles as small as dust mite faeces and tobacco smoke so the air that leaves the cleaner is cleaner than the air in the room to start with!
Thanks to the filter bag system and an airtight body, Miele vacuum cleaners were the first to comply, as a complete system, with the requirements of the new European standard for air hygiene when fitted with an Active HEPA filter.
They have been awarded seals of approval by the DMT, an independent institute in Germany, in recognition of the fact that they can reduce an individual's exposure to airborne particles such as house dust mite and cat allergens. Indeed, all our cleaners perform to the same high standards when used with the Active HEPA filter.