NOVELTY - Ozone oxidation catalyst (502) comprises: a porous body having a surface; and a catalytic noble metal composition deposited on the surface of the porous body, where the catalytic noble metal composition comprises a mesoporous molecular sieve support and a noble metal.    USE - The ozone oxidation catalyst is useful: in the process and apparatus for removing volatile organic compound from gas, where the volatile organic compounds are benzene, toluene, ethylbenzene, xylenes, 1,2,4-trimethylbenzene, acetone, ethyl alcohol, isopropyl alcohol, methacrylates ethyl acetate, tetrachloroethene, perchloroethene, trichloroethene, D-limonene, alpha -pinene, isoprene, tetrahydrofuran, cyclohexane, hexane, butane, heptane, pentane, 1,1,1-trichloroethane, methyl-isobutyl ketone, methylene chloride, carbon tetrachloride, methyl ethyl ketone, 1,4-dichlorobenzene, naphthalene, trichlorofluoromethane, dichlorodifluoromethane or formaldehyde (all claimed); and for removing gas-phase pollutants from gases comprising air ionization.    ADVANTAGE - The ozone oxidation catalyst: effectively catalyzes ozone oxidation at ambient temperatures, exhibits low pressure drop in gas flow; provides large catalytic surface per unit volume over which gas flow can pass allowing efficient mixing of oxygen radicals and pollutants; removes pollutants from gas in smaller packaging volume; and enhances high hydrophobicity and absorption of pollutants.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) removing volatile organic compound from a gas, comprising adding ozone to a gas comprising at least one volatile organic compound forming a gas flow (505) containing at least one volatile organic compound and ozone, and passing the gas flow over a filter comprising the ozone oxidation catalyst; and    (2) an apparatus for the removal of the volatile organic compound from the gas, comprising a reactor containing a filter comprising the ozone oxidation catalyst, a fan or pump for moving ambient air or other gas into the reactor and passing the ambient air or other gas over the filter, and an ozone generator or ozone source for adding ozone to the reactor.    DESCRIPTION OF DRAWING(S) - The figure shows schematic representation of a cross-section of the ozone oxidation catalyst.    Reactor chamber (501)    Ozone oxidation catalyst (502)    Inlet (503)    Outlet (504)    Gas flow (505)