The device produces sound between 30 and 60 hertz which pushes oxygen away from the source of the flames, in effect starving the fire from oxygen.
At this stage the device has only been tested on small scale alcohol fires, although in principle there is nothing to suggest that a scaled up version would fail to have the same effect.
Keep a look out for Firemen and Firewomen carrying specialist bass sub woofer fire extinguishers into burning buildings in the near future.
