With Britain set to sweat through a week of soaring temperatures, designer Sir James Dyson has declared war on 'inefficient' air-conditioning with the launch of a new range of fans today.
The British inventor of the cyclone vacuum cleaner reckons his latest invention - jet-engine technology fans - are both cheaper and better than air-conditioning units.
He said: 'Air conditioning is inefficient and gives little or no ventilation. We want to take on air conditioning.'
With over 100 patents pending, the technology inside Dyson's bladeless fans works by sucking up to 33 litres of air into the cyclone accelerator, in a similar way to a jet-engine or a turbo-charger in a car.