The V-TÜF M CLASS MINI helps you tackle dust at the source. Connect it directly to your power tools or sweep up and enjoy a dust-free environment. The V-TÜF®M CLASS MINI is M-Class Rated, the ‘Minimum Requirement’ for construction sites. Unrated vacuum cleaners are extremely dangerous as respirable dust can pass through the motor and be pumped back into the air. This dust then remains airborne for up to 8 hours, where it can be inhaled directly into your lung chamber, where it will remain forever. Approximately 700 people in the UK die every year due to illness relating to the inhalation of respirable dust.