Apparatus and method of verifying personal identity of an authorized user and providing information necessary to gain access to one or more secure sites in response to such verification. The BVM having the usual patient mask with a gas inlet and flexible patient face sealing edge, flexible manually squeezed bag with a one way intake and output valves in flow communication with a gas source and the mask inlet, and exhaust port for exhausting exhaled gas from the mask when the bag output valve is closed. The programmable element is configured to produce interference with an electron wave in at least the first section of the nanoscale material layer. A electric-field application section provided on the downstream side of the stenosis channel applies an electric field for changing the flow of the cells inside a flow channel on the basis of information on the measured complex dielectric constants so that the cells can be sorted by making use of branch channels.