A filter material for generating oxygen andor hydrogen gas from a source having a porous boron doped carbon film with diRutheniumdiRuthenium molecules in direct contact with the porous boron doped carbon film, a synthetic film having at least one zeolite crystalline body in direct contact with the nanocarbon tubules, or both in a continuous alternating arrangement. The structural unit is fixed on a bottom plate of the car body. The clock switch circuit switches between a system clock and a corresponding clock of a digital video signal.