Abstract: An environmental evaluation installation including an evaluation chamber 1 isolated from outer space by isolation walls 2, minute substance supply means 3 configured to supply a microorganism into the evaluation chamber 1, a minute substance removing means 4 configured to supply removal particles for removing the microorganism into the evaluation chamber 1, and a minute substance collecting means 5 configured to collect the microorganism in the evaluation chamber 1, and which is characterized in that many air supply holes 21 are provided for almost the whole surfaces of the isolation walls 2 except at least the floor surface of the isolation walls 2 and that air is made to flow into the evaluation chamber 1 from the air supply holes 21.

Abstract: The sterilizing effect of particle irradiation on microorganisms for the sterilizing treatment thereof can be evaluated. The evaluation can be done by supplying microorganisms in the space inside a container (8), allowing particles (7) for the sterilizing treatment of microorganisms to irradiate the microorganisms, sampling the microorganisms by a sampling means (6) after the irradiation of the particles (7) and measuring the sampled microorganisms. The microorganisms as the subject for the sterilizing treatment can be a combination of one or more members selected from the group consisting of bacteria, mycete, viruses and allergens. As the particles, for example, positive ions, negative ions, and gases of positive ions and negative ions in mixture, charged particles such as ? rays and ? rays, various plasma gas particles, particles such as ozone and radical particles, and particles of chemical agent can be used.

Abstract: In order to remove a pathogenic effect of a microorganism in a room or a work space in a short period of time, an ion diffusing apparatus, which includes an ion generator (17, 18) for generating positive ions each including H+(H2O)m and negative ions each including O2?(H2O)n, where m and n are arbitrary integers, and a blower for delivering the positive ions and the negative ions, which are generated from the ion generator (17), from a blowout opening, is operated to widely distribute, with a high concentration, the positive ions and the negative ions in the room.

Abstract: When the electrically driven fan (14) of a vacuum cleaner is driven, air containing dust is drawn into the cleaner main body (1) through a hose (7) connected to a hose socket (8) and is exhausted into the outside of the cleaner main body (1) through an exhaust port (1b) via first and second suction passageways (10, 13). Disposed outside the first suction passageway (10) is an ion generator (23), it being arranged that plus and minus ions generated in the ion generator (23) are fed to the air stream flowing in the first suction passageway (10). Since the plus and minus ions kill floating germs in the air stream, the exhaust can be purified.

Abstract: A hand dryer is equipped with a hand insertion area (10), having a width that is able to accommodate hands, a high-pressure air generator (2), which generates a high-pressure airflow, discharge nozzles (N1, N2), which are disposed in the upper surface of the hand insertion area (10) and blow the high-pressure airflow, an exhaust duct (4), which is connected between the exhaust side of the high-pressure air generator (2) and the discharge nozzles (N1, N2), an ejection port (23), which opens to the space surrounding the hand dryer, a switching damper (24), which opens a portion of the exhaust duct (4) and is connected to the ejection port (23), and an ion generator (22), which generates ions having sterilization action into the high-pressure airflow passing through the exhaust duct (4) on the upstream side of the switching damper (24).

Abstract: The sterilizing effect of particle irradiation on microorganisms for the sterilizing treatment thereof can be evaluated. The evaluation can be done by supplying microorganisms in the space inside a container (8), allowing particles (7) for the sterilizing treatment of microorganisms to irradiate the microorganisms, sampling the microorganisms by a sampling means (6) after the irradiation of the particles (7) and measuring the sampled microorganisms. The microorganisms as the subject for the sterilizing treatment can be a combination of one or more members selected from the group consisting of bacteria, mycete, viruses and allergens. As the particles, for example, positive ions, negative ions, and gases of positive ions and negative ions in mixture, charged particles such as a rays and ? rays, various plasma gas particles, particles such as ozone and radical particles, and particles of chemical agent can be used.

Abstract: A hand dryer is equipped with a hand insertion area (10), having a width that is able to accommodate hands, a high-pressure air generator (2), which generates a high-pressure airflow, discharge nozzles (N1, N2), which are disposed in the upper surface of the hand insertion area (10) and blow the high-pressure airflow, an exhaust duct (4), which is connected between the exhaust side of the high-pressure air generator (2) and the discharge nozzles (N1, N2), an ejection port (23), which opens to the space surrounding the hand dryer, a switching damper (24), which opens a portion of the exhaust duct (4) and is connected to the ejection port (23), and an ion generator (22), which generates ions having sterilization action into the high-pressure airflow passing through the exhaust duct (4) on the upstream side of the switching damper (24).

Abstract: In order to remove a pathogenic effect of a microorganism in a room or a work space in a short period of time, an ion diffusing apparatus, which includes an ion generator (17, 18) for generating positive ions each including H+(H2O)m and negative ions each including O2?(H2O)n, where m and n are arbitrary integers, and a blower for delivering the positive ions and the negative ions, which are generated from the ion generator (17), from a blowout opening, is operated to widely distribute, with a high concentration, the positive ions and the negative ions in the room.

Abstract: There are provided a method of changing a property or function of a substance by fragmenting a protein contained in the substance floating in a gas, and a method of eliminating a biofunction of a cell by applying to the cell either an electric discharge or a particle produced by the electric discharge, or both simultaneously, to fragment a protein contained in the cell.

Abstract: An environmental evaluation installation including an evaluation chamber 1 isolated from outer space by isolation walls 2, minute substance supply means 3 configured to supply a microorganism into the evaluation chamber 1, a minute substance removing means 4 configured to supply removal particles for removing the microorganism into the evaluation chamber 1, and a minute substance collecting means 5 configured to collect the microorganism in the evaluation chamber 1, and which is characterized in that many air supply holes 21 are provided for almost the whole surfaces of the isolation walls 2 except at least the floor surface of the isolation walls 2 and that air is made to flow into the evaluation chamber 1 from the air supply holes 21.

Abstract: When the electrically driven fan (14) of a vacuum cleaner is driven, air containing dust is drawn into the cleaner main body (1) through a hose (7) connected to a hose socket (8) and is exhausted into the outside of the cleaner main body (1) through an exhaust port (1b) via first and second suction passageways (10, 13). Disposed outside the first suction passageway (10) is an ion generator (23), it being arranged that plus and minus ions generated in the ion generator (23) are fed to the air stream flowing in the first suction passageway (10). Since the plus and minus ions kill floating germs in the air stream, the exhaust can be purified.

Abstract: When the electrically driven fan (14) of a vacuum cleaner is driven, air containing dust is drawn into the cleaner main body (1) through a hose (7) connected to a hose socket (8) and is exhausted into the outside of the cleaner main body (1) through an exhaust port (1b) via first and second suction passageways (10, 13). Disposed outside the first suction passageway (10) is an ion generator (23), it being arranged that plus and minus ions generated in the ion generator (23) are fed to the air stream flowing in the first suction passageway (10). Since the plus and minus ions kill floating germs in the air stream, the exhaust can be purified.

Abstract: Disclosed herein are a sterilization method and a sterilization apparatus which are capable of exerting a sterilizing effect on all microorganisms or viruses and which are safe for a living body to be sterilized. The sterilization method includes releasing reactive particles onto microorganisms or viruses to fragment proteins contained in the microorganisms or viruses on condition that nucleic acids contained in the microorganisms or viruses are not disrupted. The sterilization apparatus releases air containing reactive particles that fragment proteins without disrupting nucleic acids to kill microorganisms or viruses present in a target.

Abstract: When the electrically driven fan (14) of a vacuum cleaner is driven, air containing dust is drawn into the cleaner main body (1) through a hose (7) connected to a hose socket (8) and is exhausted into the outside of the cleaner main body (1) through an exhaust port (1b) via first and second suction passageways (10, 13). Disposed outside the first suction passageway (10) is an ion generator (23), it being arranged that plus and minus ions generated in the ion generator (23) are fed to the air stream flowing in the first suction passageway (10). Since the plus and minus ions kill floating germs in the air stream, the exhaust can be purified.