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A vacuum cleaner is only as good as its filter, a fact that explains the priority traditionally given to filtration in the design of Nilfisk equipment.

The filter capacity is impressive – take the filter of the Nilfisk Extreme – if the filter were folded out flat it would be as big as a broadsheet newspaper! The efficiency of our unique HEPA filter system is so good that the outflowing air is actually cleaner than ordinary atmospheric air.99.999% of all dust particles down to 0.3 µm, dramatically reducing the amount of dust particles you breathe in. 
      
All dust particles larger than 5 µm are stopped by your own filter system: the lungs. The more particles that reach your lungs, the more irritation they cause. This can result in coughing and may be troublesome if you suffer from allergies or asthma.
         
The advanced, certified HEPA (High Efficiency Particulate Air) filter is already recognised as one of the best on the market. It is placed behind the motor for enhanced performance. The result is a system that extracts an incredible 99.999% of the microscopic dust particles that are often troublesome to people, especially those who suffer from allergies and asthma (HEPA class H14). Most people are sensitive to dust of one type or another but with a Nilfisk everyone can breathe easily.