TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Eliminator: The eliminator comprises a housing adapted to be supported from a toilet or adapted to be self-supporting, and may comprise a bed of activated charcoal such that the component works synergistically with this. The converter can be removed when the component has been depleted. The eliminator further comprise an impeller for drawing a volume of gas through the converter, which can be activated manually, by a pressure actuator located under a toilet seat, by a light detector switch or by a radio frequency detector switch.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The chemically-reactive component includes an oxidizing agent, a component for ameliorating ammonia odor and a component to enhance the chemical conversion of flatus. It displays disinfectant properties and/or includes a fragrance repository. The component consists of a carboxylic acid anhydride, olefin, alkyne, carboxylic acid ester, aldehyde, isonitrile, alkyl halide, alpha diketone, acyl halide, diazo ketone, epoxide, isocyanate, isothiocyanate, thiocyanate, vinyl ether, diazonium salt, alpha,beta-unsaturated carbonyl, ketone, alpha,beta-unsaturated nitrile, metal hydride or carbamate. Optionally, the eliminator comprises a zone including a hydrogen sulfide reactant and a Lewis base (or Lewis acid), and a second zone including the Lewis acid (or Lewis base). EXAMPLE - An intake port was located under the lid of a toilet, and communicated with the rest of the unit via a hollow flange. It was activated by a pressure switch. Foul air flowed through the intake port and flange by suction created by an in-line impeller operating at 3000 rpm receiving power from a 120 volt outlet. The power also communicated with the pressure switch using electric leads and with the switch through the impeller leads. The housing was made of PVC and was 15 inches long and 5.5 inches wide at its widest point. The battery was located near the bottom on the interior of the unit and was secured with adhesive and a truncated PVC flange just large enough to hold it. The flange extended laterally toward the center, and was positioned against one side so that the air flow was not obstructed. The unit sat up off the floor with a clearance of 2 inches. Its weight was supported using a hook-shaped fastener that curved over and under the toilet bowl rim. The fastener was an extension of the lower surface of the intake port. The exhaust port was 6 inches2 and fitted with a fragrance repository composed of a scent absorbed onto a piece of porous felt the size of the exhaust port opening. The mat used consisted of a 0.5 inch thick polypropylene fiber impregnated with 50 g of 25% calcium oxide, 10% sodium hypochlorite solution (5%), 25% nonionic surfactant and 40% precipitated silica. The unit operated with fair success over a 7 weeks period.