Abstract: A local cleaning system which uses a charged air shower unit for forming a shield curtain by means of an ion wind, and a local exhaust device for exhausting the air containing dirt and dust settled down on the floor by the ion wind to construct a clean shielded space with no need for a dedicated partition wall. With this local cleaning system, the charged air shower unit provides negative charges for gas molecules, and dirt and dust, floating microorganisms, odor constituents, and other foreign matters, for electrically neutralizing them, and leads the gas molecules and foreign matters which have lost the charges and which Brownian motion is suppressed, by means of the ion wind for effectively sucking them into the local exhaust device or air cleaner. Because a charged air curtain including an invisible ion wind provides a shield plane, a clean shielded space can be constructed with no need for a dedicated partition wall.

Abstract: A local cleaning system which uses a charged air shower unit for forming a shield curtain by means of an ion wind, and a local exhaust device for exhausting the air containing dirt and dust settled down on the floor by the ion wind to construct a clean shielded space with no need for a dedicated partition wall. With this local cleaning system, the charged air shower unit provides negative charges for gas molecules, and dirt and dust, floating microorganisms, odor constituents, and other foreign matters, for electrically neutralizing them, and leads the gas molecules and foreign matters which have lost the charges and which Brownian motion is suppressed, by means of the ion wind for effectively sucking them into the local exhaust device or air cleaner. Because a charged air curtain comprising an invisible ion wind provides a shield plane, a clean shielded space can be constructed with no need for a dedicated partition wall.

Abstract: The present invention provides a low-temperature plasma generator as an electric discharger which is used for discharging electricity in dry air, humid air or water, thereby removing an offensive odor, sterilizing bacteria, purifying water and so on. In the low-temperature plasma generator, rod electric conductors are inserted in through-holes formed in rod ceramics dielectric members and extending in longitudinal directions thereof, both ends of the electric conductors and the dielectric members are integrally joined and sealed by glass or an inorganic or organic adhesive, so as to constitute a plurality of electrodes, and the electrodes are connected to each other through the ceramics dielectric members in line-contacted relation.

Abstract: According to the present invention, a decompression chamber is provided in a water flow pipe and an ozonizer chamber of an ozonizer part is integrally connected with the water flow pipe to communicate with the decompression chamber, to thereby define a body. Thus, an apparatus is compactly finished while operation for assembling the apparatus is simplified. A check valve is provided between the decompression chamber and the ozonizer chamber to prevent water in the decompression chamber from flowing into the ozonizer chamber upon stoppage of water-supply to the inlet. Thus, counterflow of the water in the decompression chamber into the ozonizer chamber is prevented, so that danger of an electric shock is reduced, to thereby ensure safety.