Cyclonic separation apparatus

A vacuum cleaner comprising a motor coupled to a fan for generating air flow, and a cyclonic separation apparatus located in the path of the air flow generated by the fan, wherein the cyclonic separation apparatus further comprises:

• a cyclone with a hollow generally cylindrical body, a hollow generally frustro-conical body tapering away from the cylindrical body and a longitudinal central axis through the cylindrical body and the frustro-conical body;
• a discharge nozzle through the frustro-conical body at a longitudinal end of the cyclone;
• an air inlet port through a side of the cylindrical body, wherein the air inlet port is arranged tangentially to the cylindrical body;
• and
• an air outlet port through the cylindrical body at an opposite longitudinal end of the cyclone;
• a dirt container in communication with the cyclone;
• and
• a deflector fin arranged within the cyclone to deflect, in use, air flow from the air inlet port in a helical path around the cyclone and towards the discharge nozzle.