Any ceiling fan should be at least 2.1 metres from the floor to the blades of the fan. If you have ceilings above 3 metres, you may require an extension rod. Image is generic
Airborne Activ DC Extension Rod 90cm – Black
Black Extension Rod length of 90cm (ACT-900EXT-BL) suitable only for the Airborne Activ DC ceiling fan range. Can be cut to size by installer.