Bladeless electric fans are just annouced from the maker of the bagless vacuum cleaner and the towel-less hand dryer: James Dyson. This neat little invention uses advancements in airflow engineering to ‘multiply’ air 15 times and push out 119 gallons of smooth and uninterrupted air every second. Using this technology, the electric are able to operate without the use of blades.

According to the FT:
The new fan works by drawing air into the base of the machine. The air is forced up into the loop amplifier and accelerated through the 1.3mm annular aperture, creating a jet of air that hugs the airfoil-shaped ramp. While exiting the loop amplifier, the jet pulls air from behind the fan into the airflow (inducement). At the same time, the surrounding air from the front and sides of the machine are forced into the air stream (entrainment), amplifying it 15 times. The result is a constant uninterrupted flow of cooling air.