Dyson Air Multiplier

Dyson is a British-based company and manufacturer of bagless vacuum cleaners (using cyclonic separation and brushless electric motors), heatless hand dryers, bladeless fans/heaters, and robotic vacuum cleaners.

Dyson has developed various technologies in their products, such as the dual cyclone used in vacuum cleaners and their Airblade hand dryers.

The Dyson digital motor is a DC electric motor operates on the switched reluctance principle used in several pieces of equipment. According to Dyson, it is smaller, lighter, cleaner and more power-efficient (due in part to tight tolerances) than conventional electric motors. These brushless motors rotate at up to 110,000 rpm. The motor is a two-pole brushless motor with a digital controller. Dyson says efficiency is 84%, which is less than the 96% efficiency that is achieved in some brushless designs. In order to deal with the high speed, the impeller is made of carbon-fibre reinforced polymer, the shaft is steel. The first version was named X020 and used in the Airblade hand dryer; the later DDM (Dyson digital motor) V2 is used for Dyson handheld vacuum cleaners.

The Dyson Airblade is a hand dryer for commercial customers, typically made available in public hand-washing facilities. The Airblade uses Dyson's Digital Motor to produce a stream of air that flows at up to 430 mph (700 km/h) and is claimed to dry the hands in 10 to 12 seconds. The Airblade uses a HEPA filter to remove bacteria and mould from the air. The Dyson Airblade is the world's first hygienic commercial hand dryer according to NSF International; it is accredited by the British Skin Foundation and the Royal Institute of Public Health as well. The Dyson Airblade is HACCP approved. The first Dyson Airblade was launched in 2006

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