An air delivery system comprises a visor having an outer peripheral edge and an inner peripheral edge. An air filtration assembly is removably mounted above an opening in the visor between the outer and inner peripheral edges, the air filtration assembly comprising a fan having an air inlet and an air outlet, an anode layer disposed over the air inlet, a filter layer disposed over the anode layer and a cathode layer disposed over the filter layer. In a first configuration, the air filtration assembly provides air flow toward an inner surface of the visor and, in a second configuration, the air filtration assembly provides air flow away from an outer surface of the visor. The air filtration assembly includes a mode actuator configured to control operation of a filtration mode indicator in dependence upon positioning of the air filtration assembly in the first or second configuration.

An air delivery system comprises a visor having an outer peripheral edge and an inner peripheral edge. An air filtration assembly is removably mounted above an opening in the visor between the outer and inner peripheral edges, the air filtration assembly comprising a fan having an air inlet and an air outlet, an anode layer disposed over the air inlet, a filter layer disposed over the anode layer and a cathode layer disposed over the filter layer. In a first configuration, the air filtration assembly provides air flow toward an inner surface of the visor and, in a second configuration, the air filtration assembly provides air flow away from an outer surface of the visor. The air filtration assembly includes a mode actuator configured to control operation of a filtration mode indicator in dependence upon positioning of the air filtration assembly in the first or second configuration.

Aspects herein are directed to an apparel thermo-regulatory system that actively heats or cools a wearer. The apparel thermo-regulatory system comprises an apparel item, a dimensionally stable frame comprising at least one aperture that is affixed to an outer-facing surface of the apparel item at a predetermined location, an absorbent material applied to an exposed face of the dimensionally stable frame, and at least one thermoelectric module that is releasably positioned within the aperture of the dimensionally stable frame.

Aspects herein are directed to an apparel thermo-regulatory system that actively heats or cools a wearer. The apparel thermo-regulatory system comprises an apparel item, a dimensionally stable frame comprising at least one aperture that is affixed to an outer-facing surface of the apparel item at a predetermined location, an absorbent material applied to an exposed face of the dimensionally stable frame, and at least one thermoelectric module that is releasably positioned within the aperture of the dimensionally stable frame.

To provide a garment capable of suppressing a stuffy feeling and a hot feeling in the garment regardless of the presence or absence of air blowing from a blower fan, maintaining a comfortable environment in the garment, and having excellent wearing comfort, the garment includes a fabric mainly formed of hygroscopic fibers as constituent fibers, the fabric having air permeability of 45 cm.sup.3/cm.sup.2/s or less; and at least one air inlet for taking outside air into the garment.

A garment body of a fan-equipped garment includes a fan mount hole for mounting a fan, a front fabric made of a material having no breathability or having a certain level of breathability to be inflated with air introduced by the fan, and a heat insulation layer disposed on a back side of the front fabric and made of a material that holds air.

The present disclosure describes a multimodal adaptive textile with moisture-responsive flaps composed of a nylon/metal heterostructure, which can simultaneously regulate convection, sweat evaporation, and mid-infrared emission to accomplish heat transfer tuning in response to human perspiration vapor. A metal layer contributes to low-emissivity radiative heating and enhances the bimorph actuation performance. The multimodal adaptive mechanism expands the thermal comfort zone compared to traditional static textiles and single-modal adaptive textiles without any electricity or energy input.

The present disclosure describes a multimodal adaptive textile with moisture-responsive flaps composed of a nylon/metal heterostructure, which can simultaneously regulate convection, sweat evaporation, and mid-infrared emission to accomplish heat transfer tuning in response to human perspiration vapor. A metal layer contributes to low-emissivity radiative heating and enhances the bimorph actuation performance. The multimodal adaptive mechanism expands the thermal comfort zone compared to traditional static textiles and single-modal adaptive textiles without any electricity or energy input.

A spacer includes: projections each of which has a frame; multiple standing portions each of which has one end connected to the frame and that stand on the frame; and a standing-end connector that connects other ends of the standing portions, the frames being disposed close to each other such that the projections are connected; and flexible connectors that connect the frames. The projections have a three-dimensional shape. The flexible connectors are elastically deformable. At least either the projections or the flexible connectors have different shapes depending on a part of the spacer.

Medical gas delivery devices are provided. A garment or another object may include a hose assembly configured to couple the garment or the object to a medical gas source. The garment or the object can be configured to deliver a medical gas to a patient. Additionally, medical gas delivery devices configured to be removably coupled to a garment or another object are provided.