Abstract: A cabinet-shaped AIR FILTER includes an air inlet in a lower casing, an air outlet in an upper casing, an air quality measurement and power control device, a fan behind the air inlet, a housing for enclosing the fan and having two sidewalls formed with the lower casing, the housing including a front air intake of streamline section, an upper air exit of rectangular section, and a board extended forward from a top of the air exit to a joining side of the upper and lower casings, one or more ultraviolet lamps on the top of the air exit, and a deodorant and dust filter in the upper casing. The fan can automatically operate in one of different stages in response to different levels of air quality measured by the air quality measurement and power control device.

Abstract: A solar lighting device includes a transparent housing. Within the housing, there are provided a light-emitting member (e.g., LED or lamp), a control circuit having a microprocessor and a switch activated by magnetic force, light, or body temperature, and a solar battery for supplying electric power to both the light-emitting member and the control circuit. A transparent or translucent object such as cup, bottle, or ornament may be mounted on the lighting device such that light with varying color and/or brightness may be emitted from the object as controlled by the microprocessor and the switch activated by an approaching trigger member when the lighting device is activated.