Abstract: A ventilator includes: a blower unit that exchanges indoor air; a corrected threshold calculation unit that calculates a corrected threshold by correcting a predetermined threshold of CO2 concentration in the indoor air for changing a ventilation air volume on the basis of a detected outdoor air CO2 concentration value that is CO2 concentration in outdoor air detected; and a ventilation air volume control unit that changes the ventilation air volume by controlling an air volume of the blower unit on the basis of the CO2 concentration in the indoor air and the corrected threshold.

Abstract: A total heat exchange element includes a stacked body that is formed by alternately stacking a first layer provided with a first passage through which a first air flow passes and a second layer provided with a second passage through which a second air flow passes. The stacked body includes a partition member between the first layer and the second layer, a spacing member provided in the first layer and the second layer and maintaining a spacing between the partition members facing each other, and a latent heat shielding member provided partly on the partition member and shielding transfer of latent heat between the first air flow and the second air flow through the partition member.

Abstract: A ventilator includes: a blower unit that exchanges indoor air; a corrected threshold calculation unit that calculates a corrected threshold by correcting a predetermined threshold of CO2 concentration in the indoor air for changing a ventilation air volume on the basis of a detected outdoor air CO2 concentration value that is CO2 concentration in outdoor air detected; and a ventilation air volume control unit that changes the ventilation air volume by controlling an air volume of the blower unit on the basis of the CO2 concentration in the indoor air and the corrected threshold.

Abstract: A total heat exchange element includes a stacked body that is formed by alternately stacking a first layer provided with a first passage through which a first air flow passes and a second layer provided with a second passage through which a second air flow passes. The stacked body includes a partition member between the first layer and the second layer, a spacing member provided in the first layer and the second layer and maintaining a spacing between the partition members facing each other, and a latent heat shielding member provided partly on the partition member and shielding transfer of latent heat between the first air flow and the second air flow through the partition member.

Abstract: A hand dryer includes a hand drying chamber that includes a hand insertion opening from which a hand is inserted, a first wall section that faces the hand inserted from the hand insertion opening, a second wall section that faces the hand and the first wall section, and a plurality of air nozzle sections, which extends in a direction from the hand insertion opening to a far side and jets a high-speed air, on any one of the first wall section and the second wall section, and a distance between the air nozzle sections in a horizontal direction is wide on a side of the hand insertion opening and is narrow on the far side.

Abstract: A hand dryer includes a hand drying chamber that includes a hand insertion opening from which a hand is inserted, a first wall section that faces the hand inserted from the hand insertion, opening, a second wall section that faces the hand and the first wall section, and a plurality of air nozzle sections, which extends in a direction from the hand insertion opening to a far side and jets a high-speed air, on any one of the first wall section and the second wall section, wherein a distance between the first wall section or the second wall section that faces the air nozzle sections and the air nozzle sections is large in an upper portion and is small in a lower portion.

Abstract: A hand inserting portion is opened at one surface of a casing or at both the one surface and other surface of the casing. The hand inserting portion includes a space in which hands can be accommodated. A high-pressure-airstream generating unit generates a high-speed airstream. A nozzle is provided on each of two opposing sides of the hand inserting portion, from which the high-speed airstream is jetted into the space of the hand inserting portion. The nozzle includes a hole array formed by arranging a plurality of nozzle holes in a row. Air volume of the high-speed airstream is larger at a central portion of the hole array than at other portions of the hole array.

Abstract: A hand drying apparatus includes a main body box case 1 that has a hand inserting portion 3 formed in a concave shape at an upper portion; a high-pressure airflow generator 2 that generates high-pressure airflows and is included in the main body box case; and a front side air nozzle 6a and a back side air nozzle 6b that eject the high-pressure airflows generated by the high-pressure airflow generator 2 into the hand inserting portion 3 and face each other. The front side air nozzle 6a and the back side air nozzle 6b are formed by a plurality of slit-shaped ejecting holes 7 arranged in a line, respectively, and both or any one of lengths and arranging intervals of the slit-shaped ejecting holes 7 is different between a front side and a back side. A hand drying apparatus that can prevent noise and realize high drying performance and excellent usability without employing a complicated construction is obtained.

Abstract: In a hand drying apparatus, a first air opening and a second air opening are arranged on opposing surfaces. The first air opening is displaced towards an interior of the hollow portion, for inserting wet hand, with respect to the second air opening such that axes of air jets output from the first air opening and the second air opening do not collide. Moreover, a surface that receives the air jet from an air opening on opposing surface is inclined toward the interior of the hollow portion.

Abstract: A hand inserting portion is opened at one surface of a casing or at both the one surface and other surface of the casing. The hand inserting portion includes a space in which hands can be accommodated. A high-pressure-airstream generating unit generates a high-speed airstream. A nozzle is provided on each of two opposing sides of the hand inserting portion, from which the high-speed airstream is jetted into the space of the hand inserting portion. The nozzle includes a hole array formed by arranging a plurality of nozzle holes in a row. Air volume of the high-speed airstream is larger at a central portion of the hole array than at other portions of the hole array.

Abstract: A hand inserting portion is opened at one surface of a casing or at both the one surface and other surface of the casing. The hand inserting portion includes a space in which hands can be accommodated. A high-pressure-airstream generating unit generates a high-speed airstream. A nozzle is provided on each of two opposing sides of the hand inserting portion, from which the high-speed airstream is jetted into the space of the hand inserting portion. The nozzle includes a hole array formed by arranging a plurality of nozzle holes in a row. Air volume of the high-speed airstream is larger at a central portion of the hole array than at other portions of the hole array.

Abstract: A hand drying apparatus includes a hand inserting portion having a concave shape including a front inner wall facing a back inner wall, an airflow generator that generates high-pressure airflows, and a first air nozzle and a second air nozzle that inject the high-pressure airflows to the hand inserting portion. The first air nozzle is provided on the front inner wall and the second air nozzle is provided on the back inner wall. The first air nozzle includes slip-shaped first holes arranged in a line, each having a first length. The second air nozzle includes slip-shaped second holes arranged in a line, each having a second length. The first length and the second length are different.

Abstract: In a hand drying apparatus, a first air opening and a second air opening are arranged on opposing surfaces. The first air opening is displaced towards an interior of the hollow portion, for inserting wet hand, with respect to the second air opening such that axes of air jets output from the first air opening and the second air opening do not collide. Moreover, a surface that receives the air jet from an air opening on opposing surface is inclined toward the interior of the hollow portion.

Abstract: To obtain a washing machine capable of sanitarily effecting washing with fresh water at all times and reducing a washing time and a drying time. Tap water supplied from a water feed pipe in association with sensing means is pressurized to predetermined pressure by a pressurizing pump, supplied to water injection nozzle pipes and injected into a washing space through water injection nozzles. The user inserts tableware held by hands between the nozzles, energising the sensor mechanism. A high speed water flow injected from the nozzles collides against the tableware and washes the tableware by removing stubborn dirt from the tableware. On the other hand, an air flow from a blower passes though the air nozzle pipes and is discharged from the air nozzles to remove the drops of water attached to the tableware by forced air action.