NOVELTY - The gas treatment apparatus to remove gaseous phase organic pollutants, comprises a gas-flow path and three reactor units through which gas flow arranged in series along path, and a unit for causing the gas to flow along the path and through the reactor cells. The reactor units are adapted to generate a non-equilibrium plasma. The cells are arranged such that the gas flow path is pass through the electrodes and the fixed beds. The glass has dielectric constant of less than 25. The air permeable fixed beds of the reactor cells comprise discrete bodies of the glass in contacting relationship.    USE - Useful to decompose gas-borne contaminants e.g. organic compounds and biological agents.    ADVANTAGE - The gas treatment apparatus easily and economically remove pollutants from waste gases, requires significant energy to push the air through the system, and allows very low power operation of multiple cells to achieve process efficiencies.    DETAILED DESCRIPTION - The gas treatment apparatus to remove gaseous phase organic pollutants, comprises a gas-flow path and three reactor units through which gas flow arranged in series along path, and a unit for causing the gas to flow along the path and through the reactor cells. The reactor units are adapted to generate a non-equilibrium plasma. The cells are arranged such that the gas flow path is pass through the electrodes and the fixed beds. The glass has a dielectric constant of less than 25. The air permeable fixed beds of the reactor cells comprise discrete bodies of the glass in contacting relationship. The reactor units are reactor cells comprising a pair of spaced and air-permeable electrodes (9), an air-permeable fixed bed of a glass extending between the electrodes, and a unit for applying a potential difference across the electrodes to generate a non-equilibrium plasma in the bed between the electrodes. The bodies comprise beads having a diameter of 1-12mm. Downstream of the last reactor unit in series along the gas flow path is catalyst bed incorporating a manganese dioxide. A catalyst is capable of oxidizing carbon monoxide having copper oxide admixed with or located downstream of the catalyst capable of decomposing ozone. INDEPENDENT CLAIMS are included for:    (1) a method of treating a gas;    (2) a method of generating ozone;    (3) an apparatus for decomposing a pollutant material dispersed in a gas; and    (4) a method of decomposing a pollutant material in the gas phase.    DESCRIPTION OF DRAWING(S) - The diagram shows a gas treatment apparatus:    Housing; (2)    Inlet; (3)    Outlet; (4)    Packed glass spheres; (8)    Air-permeable electrode. (9)