space of electrolytic cell 10 any electrolyte solution for generating an oxidant is useful in accordance with the present invention during electrolysis hydrogen gas is liberated at cathode 18 and accumulates in headspace 13 as hydrogen gas accumulates in headspace 13 gas pressure increases according to the well known gas equation pv nrt wherein p is the pressure of the gas v is the volume of the chamber n is the moles of gas r is the molar gas constant and t is the absolute temperature gas pressure increases by virtue of the fact that inlet valve 15 and outlet valve 16 are both closed to initiate the process outlet valve 16 is closed and inlet valve 15 is open electrolyte solution 14 is introduced to cell housing 12 either by gravity feed or by utilizing a fluid transfer device such as a pump to introduce the electrolyte solution 14 to interior of the cell housing 12 after electrolyte solution 14 has been introduced into cell housing 12 inlet valve 15 is closed and electrical power is applied across the positive electrode anode 17 and negative electrode cathode 18 anode 17 and cathode 18 are sealed within cell housing 12 during electrolysis hydrogen gas is generated at the surface of cathode 18 the hydrogen gas bubbles rise and accumulate in headspace 13 as electrolysis continues gas pressure within headspace 13 rises creating a pressure within cell housing 12 with proper design approximately all of the sodium chloride within electrolyte solution 14 is efficiently converted to oxidant the volume of headspace 13 determines the pressure that is built up within cell housing 12 the appropriate.