Sterilization method, ion generating element, ion generating device, and air conditioning device

• Main Authors: TAKESHI FURUKAWA, AKIO MIYATA, YASUKATA TAKEDA, KAZUO NISHIKAWA, TOSHIAKI TAKANO, KATSUTOSHI NOGUCHI, YOSHINORI SEKOGUCHI, MAMORU MORIKAWA, HIDEO NOJIMA
• Format: Patent
• Language: English
• Published: 16.06.2005
• Edition: 7
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; GAS-TURBINE PLANTS; HEATING; HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; HUMAN NECESSITIES; HYGIENE; LIGHTING; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NOT OTHERWISE PROVIDED FOR; RANGES; USE OF WASTE HEAT OF COMBUSTION ENGINES; VENTILATING; WEAPONS

An ion generating device generates O 2 - (H 2 O) n (where n is a natural number) as negative ions and H + (H 2 O) m (where m is a natural number) as positive ions, and discharges those ions into the air so that airborne germs are killed through an oxidation reaction by hydrogen peroxide H 2 O 2 or radical hydroxyl OH generated through as an active species a chemical reaction between the negative and positive ions. Satisfactory sterilization is achieved when the negative and positive ions are generated in such a way that the concentrations of the negative and positive ions are both 10,000 ion/cc at a distance of 10 cm from the point at which they are generated.