A mask for covering at least a nostril and a mouth of a wearer. The mask includes a main body portion and an ear hooking portion attached to the main body portion. At least a part of the main body portion has a sheet-like piezoelectric portion, and the piezoelectric portion includes a yarn formed of an electric field forming filament.

A mask for covering at least a nostril and a mouth of a wearer. The mask includes a main body portion and an ear hooking portion attached to the main body portion. At least a part of the main body portion has a sheet-like piezoelectric portion, and the piezoelectric portion includes a yarn formed of an electric field forming filament.

Some embodiments are directed to a generator and separator assembly for generating ions via atmospheric pressure, low temperature plasma and separating the generated ions. The generator and separator assembly include a plasma generator for generating the generating atmospheric pressure, low temperature plasma that is configured to eject positively and negatively ions. A separator is disposed to receive the positively and negatively ions ejected from the plasma generator, and includes a first separator electrode; a second separator electrode spaced from the first separator electrode; and a separator power supply that supplies electric power in the form of at least one of different voltages and different polarities to the first and second electrodes ranging from 0 kV and 10 kV, such that the received positively charged ions are redirected in one direction and the received negatively charged ions are redirected to another direction different from the one direction.

This publication discloses a filter unit connectable to a mobile communication device including a fan for generating an air flow inside the filter unit, electrodes covered with a photo catalytic material like TiO.sub.2 in the air flow, UV-LEDs illuminating the electrodes, and outlet for the air flow directed in direction of user of filter unit.

An Ionization unit (7) for cleaning air in a room (1) with a ceiling (3) and a floor (5), comprising an ionizer (19) configured to electrically charge particles in the air; and a support unit (13) configured to enable the ionization unit (7) to be positioned at a distance of at least 50 centimeters above the floor (5) of the room (1), wherein the support unit (13) allows the ionization unit (7) to travel within the room (1) while being distanced from the floor (5).

An Ionization unit (7) for cleaning air in a room (1) with a ceiling (3) and a floor (5), comprising an ionizer (19) configured to electrically charge particles in the air; and a support unit (13) configured to enable the ionization unit (7) to be positioned at a distance of at least 50 centimeters above the floor (5) of the room (1), wherein the support unit (13) allows the ionization unit (7) to travel within the room (1) while being distanced from the floor (5).

The invention provides a nano water ion group generator, including: at least a pair of P/N-type semiconductor dies including P-type semiconductor dies and N-type semiconductor dies, with one end being a cooling end and the other end being a heating end; a heat absorption member for obtaining a cold energy generated by the cooling end and transferring the cold energy to a blocking member; the blocking member for conducting the cold energy to obtain moisture in a condensed water or an air with high relative humidity; an ionizing member to absorb, collect or accumulate moisture in the condensed water or the air with high relative humidity, and be electrically coupled to the high voltage power supply for further ionizing the air and the moisture around the ionizing member under the action of avalanche effect to obtain at least one nanometer-sized substance among charged particles and oxygen-containing radicals.

The invention provides a nano water ion group generator, including: at least a pair of P/N-type semiconductor dies including P-type semiconductor dies and N-type semiconductor dies, with one end being a cooling end and the other end being a heating end; a heat absorption member for obtaining a cold energy generated by the cooling end and transferring the cold energy to a blocking member; the blocking member for conducting the cold energy to obtain moisture in a condensed water or an air with high relative humidity; an ionizing member to absorb, collect or accumulate moisture in the condensed water or the air with high relative humidity, and be electrically coupled to the high voltage power supply for further ionizing the air and the moisture around the ionizing member under the action of avalanche effect to obtain at least one nanometer-sized substance among charged particles and oxygen-containing radicals.

A bathroom management apparatus may include a case having an air suction port formed in an upper portion of a front surface thereof, a first air discharge port formed in a lower portion of the front surface thereof, and a second air discharge port formed in a lower surface thereof. A suction vane opens or closes the air suction port, and first and second discharge vanes opens or closes the first and second air discharge ports, respectively. A duct is provided in the case to connect the air suction port, the first air discharge port and the second air discharge port to one another. A blowing fan is provided in the duct to suck air through the air suction port and blow the air to the first air discharge port and the second air discharge port. A heater heats the air in the duct.

A bathroom management apparatus may include a case having an air suction port formed in an upper portion of a front surface thereof, a first air discharge port formed in a lower portion of the front surface thereof, and a second air discharge port formed in a lower surface thereof. A suction vane opens or closes the air suction port, and first and second discharge vanes opens or closes the first and second air discharge ports, respectively. A duct is provided in the case to connect the air suction port, the first air discharge port and the second air discharge port to one another. A blowing fan is provided in the duct to suck air through the air suction port and blow the air to the first air discharge port and the second air discharge port. A heater heats the air in the duct.