A surface cleaning apparatus includes a housing with an on-board hydrogen peroxide generator which produces a hydrogen peroxide solution in situ from fluid stored within an on-board supply tank of the surface cleaning apparatus, and further delivers the generated hydrogen peroxide solution to a cleaning pad attached to the housing of the surface cleaning apparatus.

Methods and systems for sterilizing a room are disclosed, including using a laser to generate a pulsed laser beam; using a robotic arm to direct the pulsed laser beam to a scattering optical element and to change the position of the scattering optical element; and using the scattering optical element to substantially isotropically scatter the radiation of the pulsed laser beam to sterilize the room. The scattering optical element comprises a hollow fused silica bulb filled with solid fused silica spheres or a fiber optic bundle and in some embodiments the scattering optical element is rotated. The pulsed laser beam comprises a wavelength ranging between about 200 nm to about 320 nm and in some embodiments comprises nanosecond or picosecond light pulses. Other embodiments are described and claimed.

Provided is a rotation punch brush module, which includes a sterilizing lamp that is longitudinally extended long in length and enables to emit light capable of sterilizing, a shaft that is longitudinally extended long in length in the same direction as the sterilizing lamp, and has a hollow space in its center for the insertion of the sterilizing lamp, and that is mechanically connected with a rotation motor and revolves with the rotation motor driven, and a rotation punch brush that is extended long in length along the direction of the shaft, in which a plurality of brushes are radially aligned outside the shaft along its circumferential direction with being coupled with the shaft, and with spaced apart from each other with an interval.

An apparatus for cleaning domestic and industrial surfaces includes a box-like machine body having a suction system and a steam generation system housed therein, and defining a front portion and an opposite rear portion; a joint for the end of a first suction and steam carrying flexible duct; the machine body having an additional multifunctional suction and steam delivery unit which is overhangingly supported by the machine body between two bilateral support arms hinged to the machine body, and extending beyond the front portion of the machine body.

A surface cleaning apparatus includes a housing with an on-board hydrogen peroxide generator which produces a hydrogen peroxide solution in situ from fluid stored within an on-board supply tank of the surface cleaning apparatus, and further delivers the generated hydrogen peroxide solution to a cleaning pad attached to the housing of the surface cleaning apparatus.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for automatically cleaning a portion of an environment. One of the methods includes detecting, by an automated cleaning system, movement within a physical environment; determining, by the automated cleaning system and using data that represents the movement, that one or more threshold criteria for cleaning at least a portion of the physical environment are satisfied; and in response to determining that the one or more threshold criteria for cleaning at least the portion of the physical environment are satisfied, sending, by the automated cleaning system, an instruction to a device in the physical environment to cause the device to initiate a cleaning process of at least the portion of the physical environment.

A mobile disinfection device (200) includes a disinfection chamber (203) coupled to a propulsion system (228) configured for moving along a surface (236) to be disinfected. The disinfection chamber defines a closed distal end (205), an open proximal end (206) and a surrounding wall (207) impervious to the radiation and having opposing front and rear portions and opposing side portions, respective proximal front, rear and side edges of which are propelled by the propulsion system close to the surface to be disinfected. A radiation source (260) is mounted inside the disinfection chamber for irradiating the surface through the open proximal end. The propulsion system includes a peripheral seal (304) surrounding a proximal edge of the wall and configured to obstruct radiation that might otherwise escape from inside the disinfection chamber.

A cleaner includes a body, a left spin-mop module located on a left side of the body with respect to a centerline of the body, a right spin-mop module located on a right side of the body with respect to the centerline of the body, a left spin motor disposed on the left side of the body with respect to the centerline of the body and having a left spin shaft to provide a force to rotate the left spin-mop module, and a right spin motor disposed on the right side of the body with respect to the centerline of the body and having a right spin shaft to provide a force to rotate the right spin-mop module. The left spin shaft and the right spin shaft extend in a parallel direction of the centerline of the body.

Apparatuses are disclosed which include an ultraviolet light (UV) lamp and program instructions for activating an automated actuator such that the lamp is repositioned within the apparatus relative to a structure supporting the lamp while the lamp is emitting ultraviolet light. Other apparatuses include a reflector to redirect light emitted from a UV lamp, wherein the reflector and the lamp comprise a moveable assembly. The apparatuses include an actuator for moving the moveable assembly such that the lamp may be repositioned in and out of a structure supporting the moveable assembly. Yet other apparatuses include a reflector arranged along a longitudinal side of a UV lamp and a housing surrounding the lamp, wherein the reflector and the housing comprise a moveable assembly. The apparatuses include an actuator for providing rotational movement of the moveable assembly about a vertical axis and relative to a structure supporting the moveable assembly.

Apparatuses are disclosed which include a discharge lamp configured to emit ultraviolet light, a power circuit configured to operate the discharge lamp, and a reflector system configured to redirect ultraviolet light emitted from the discharge lamp. In some embodiments, the apparatuses include a support structure containing the power circuit and supporting the discharge lamp. In some of such embodiments, the reflector system is configured to redirect ultraviolet light propagating away from the support structure to a region exterior to the apparatus and which is between approximately 2 feet and approximately 4 feet from a floor of a room in which the apparatus is arranged. In other embodiments, the reflector system may be additionally or alternatively configured to redirect ultraviolet light propagating away from the support structure to encircle an exterior surface of the apparatus. In any case, the reflector system may, in some embodiments, include a repositionable reflector.