Abstract: An air disinfection and cleaning device is provided that includes: a cylindrical reflector having a cylindrical inner surface in which an air flows from an upper end to a lower end and the cylindrical inner surface is subjected to mirror finishing; a rod shaped ultraviolet lamp disposed at the center within the cylindrical reflector parallel to the long side; photocatalytic sheet filters being air permeable photocatalytic sheet filters having a diameter nearly equal to an inner diameter of the cylindrical reflector, provided respectively at one end and the other end in the cylindrical reflector, and being penetrated by the ultraviolet lamp at the center thereof; and a copper sheet filter being an air permeable photocatalytic sheet filter having a diameter nearly equal to an inner diameter of a cylinder member and closing a lower end opening of the cylindrical reflector.

Abstract: Provided is an artificial nose and a breathing circuit provided with the artificial nose, including: an outer shell; a moisture permeable and water resistant film 6 disposed on an entire circumference of an internal surface of the outer shell, forming a water retention region with the outer shell, and forming an aeration region on an internal surface side thereof; a feed water inlet provided in the outer shell to supply water to the water retention region; a heat and moisture exchanger element loaded in the aeration region; and a heater disposed outside the outer shell, wherein the water supplied from the feed water inlet is retained in the water retention region by the moisture permeable and water resistant film, an inspiratory gas and an expiratory gas pass through the heat and moisture exchanger element loaded in the aeration region, and the artificial nose carries out a first heating and humidifying process of the inspiratory gas in which heat and moisture included in the expiratory gas passing therethrou

Abstract: Provided is an artificial airway and a breathing circuit provided with the artificial airway, including a tubular outer shell; a moisture permeable and water resistant film disposed on an entire circumference of an internal surface of the outer shell, forming a water retention region with the outer shell, and forming an aeration region on an internal surface side thereof; a feed water inlet provided in the outer shell to supply water to the water retention region; and a heater disposed outside the outer shell, heating the water in the water retention region to generate water vapor, and also heating an inspiratory gas flowing in the aeration region, wherein the water supplied from the feed water inlet is retained in the water retention region by the moisture permeable and water resistant film, and only the water vapor generated by the heating of the heater passes through the moisture permeable and water resistant film and flows into the aeration region to heat and humidify the inspiratory gas flowing in the ae