How do the AeroBed, Deluxe AeroBed and Raised AeroBed pumps work?

 
The AeroBed, Deluxe AeroBed and Raised AeroBed motor plugs into any 220V outlet. To operate, plug in motor. Make sure the exit valve at the foot of the bed is fully closed. Press and hold the button on the AC cord. The bed inflates automatically, and is fully inflated in about 60 seconds. You cannot over inflate your product.
(NOTE: European adaptor also available).