Abstract: A system is capable of air cleaning and dehumidifying, and includes a condenser device, a water supplying device and an oxyhydrogen ion generating device. The condenser device is operable to form water vapor in ambient air into water droplets. The water supplying device collects the water droplets from the condenser device. The oxyhydrogen ion generating device is coupled to the water supplying device and includes a container receiving water from the water supplying device, electrode plates disposed in the container, and an output conduit. The electrode plates are operable to electrolytically convert water to form oxyhydrogen-ion-containing gas that is released via the output conduit.

Abstract: An image projector system includes a cold light source, a projection lens, a slide retaining unit, and a liquid crystal module. The slide retaining unit is disposed between the cold light source and the projection lens, and is adapted to retain removably a projector slide between the cold light source and the projection lens when the image projector system is operated in a slide projection mode. The liquid crystal module includes a liquid crystal panel retained removably on the slide retaining unit between the cold light source and the projection lens to permit operation of the image projector system in a liquid crystal projection mode.