Abstract: A floor cleaning device (10) includes a housing (40) and a container (43) removably received by the housing. A suction nozzle (18, 18?, 18?) is fluidly connected with the container and with a suction source (52) when the container is received by the housing. A filter (114) is selectively fluidly connected with the container and with the suction source. A float (170) selectively closes the fluid connection of the filter with the container. The filter and the float may be removable as a unit (42) from the cleaning device. The nozzle may be removable, allowing an appropriate nozzle to be selected according to the type of floor surface to be cleaned.

Abstract: An air sterilizer for eliminating an associated airborne contaminant from an associated volume of air is provided. The air sterilizer includes a housing including an air inlet and an air outlet, an airflow pathway initiating approximately at the air inlet of the housing and terminating approximately at the air outlet of the housing, and an ultra-violet (UV) radiation source for producing a germicidal UV light. The UV source is disposed in the airflow pathway of the housing for exposing the associated airborne contaminant to the germicidal UV light. The air sterilizer further includes a reflecting member for increasing the exposure of the germicidal UV light to the associated airborne contaminant in the airflow pathway. The reflecting member being disposed in the housing proximal to the UV source. A power supply is provided for powering the UV source.