Fan
AssigneeDyson Technology Limited
InventorsNicholas Gerald FITTON, Kevin John Simmonds
Life of this patent
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Abstract
A portable fan includes a casing having an air inlet, and an air outlet having an interior passage for receiving an air flow, and a mouth for emitting the air flow, the interior passage extending about an opening through which air is drawn by the air flow emitted from the mouth. The fan includes an impeller and a motor for rotating the impeller to generate an air flow between the air inlet and an air outlet which has a static pressure of at least 150 Pa downstream from the impeller. A filter unit is detachably connected to the casing. A filter of the filter unit is located upstream of the air inlet to remove airborne particulates from the air flow before it enters the casing.
Claims16
A portable fan comprising:
- a casing having an air inlet;
- an air outlet comprising an interior passage for receiving an air flow, and a mouth for emitting the air flow, the interior passage extending about an opening through which air is drawn by the air flow emitted from the mouth;
- an impeller and a motor for rotating the impeller to generate an air flow between the air inlet and an air outlet which has a static pressure of at least 150 Pa downstream from the impeller;
- and
- a filter unit detachably connected to the casing, the filter unit comprising a filter located upstream of the air inlet.
Dependencies are inferred from the claim text.