With the Nilfisk Elite, you suck in polluted air into the device, where it is filtered and released as clean air. This means you are not only cleaning your flooring but also the air that you and your family breathe. The Nilfisk Elite series has been awarded these quality seals by the British Allergy Foundation: dust mites, cat allergens, dog allergens, and pollen. When purchasing a vacuum cleaner with a high-quality HEPA filter, you should definitely consider the following: The HEPA filter should be located behind the motor so that the exhaust fan emits clean air. The HEPA filter and vacuum cleaner must be completely sealed to prevent any polluted air from escaping. Nilfisk refers to this as "airtight construction." A vacuum cleaner with a high-quality HEPA filter is more expensive than conventional vacuum cleaners. However, it is a good investment for anyone who values the quality of their living environment. If you are looking for the best vacuum cleaner for your money, you should choose the Nilfisk Elite. Its outstanding Danish design, high suction power, and excellent energy class and filter performance ensure that you will always be satisfied.