Abstract: A sterilizing apparatus and an ion generating apparatus, which generate sufficient amount of cations in a short period of time and also maintain the amount of ions generated at a level that is harmless to the human body. The sterilizing apparatus and the ion generating apparatus optimize the position of an electrode to maximize the generation of active hydrogen. The ion generating apparatus includes a first electrode for generating hydrogen ions and a second electrode located such that the second electrode is separated from the first electrode by a designated distance for generating electrons and superoxide anions. The hydrogen ions generated from the first electrode react with the electrons generated from the second electrode to produce hydrogen atoms, and the hydrogen atoms react with the superoxide anions generated from the second electrode to sterilize the air.

Abstract: An air filter, an elevator having the same, and an air conditioning control method thereof purify the air inside the elevator to make the air safe and pleasant using a micro plasma ion generator (MPI). The elevator includes a cage which moves up and down in a vertical direction of a building and an air filter which purifies the air inside the cage. The air filter includes an ion generator which generates ions by a plasma discharge to discharge the ions into the cage, a dust sensor which detects a dust contamination level in the cage, and a controller which compares the dust contamination level detected by the dust sensor with a predetermined standard contamination level and operates the ion generator If the dust contamination level is equal to or greater than the predetermined standard contamination level.

Abstract: An air filter, an elevator having the same, and an air conditioning control method thereof purify the air inside the elevator to make the air safe and pleasant using a micro plasma ion generator (MPI). The elevator includes a cage which moves up and down in a vertical direction of a building and an air filter which purifies the air inside the cage. The air filter includes an ion generator which generates ions by a plasma discharge to discharge the ions into the cage, a dust sensor which detects a dust contamination level in the cage, and a controller which compares the dust contamination level detected by the dust sensor with a predetermined standard contamination level and operates the ion generator If the dust contamination level is equal to or greater than the predetermined standard contamination level.

Abstract: A ceramic electrode structure designed to have an enhanced construction, wherein an induction electrode has an area larger than that of a discharge electrode. A high square pulse voltage is applied to the enhanced ceramic electrode structure, thereby increasing an efficiency of ion generation and effectively restricting generation of ozone.