There is disclosed breathing apparatus equipment which may be in the form of a waist mountable manifold. The breathing apparatus equipment comprises a manifold having a manifold inlet port for a source of breathable gas and at least one manifold outlet port for delivering breathable gas to a user. The equipment further comprises a strap arranged to be worn by the user, and a holder coupled to the strap and having a socket. The socket is configured such that the manifold can be removably located within the socket in multiple orientations.

In one embodiment of an aircraft emergency oxygen delivery system, power can be generated by the flow of gas over a transducer disposed inside an oxygen delivery tube. A pressure differential gives rise to a temperature difference across the transducer, and the temperature difference can be converted to a voltage. The voltage can be quadratically dependent upon the Mach number M (e.g. flow velocities from 1 to 140 m/s) and proportional to a Seebeck coefficient of the transducer. The power thus generated may be used to operate LED indicators visible from the exterior of the tube, a variety of sensors, and wireless communication with a central control system. Oxygen flow to a mask may be adjusted based on ambient oxygen content and data collected from a passenger wearing the mask, including a blood oxygen saturation level, pulse or respiration rate.

In one embodiment of an aircraft emergency oxygen delivery system, power can be generated by the flow of gas over a transducer disposed inside an oxygen delivery tube. A pressure differential gives rise to a temperature difference across the transducer, and the temperature difference can be converted to a voltage. The voltage can be quadratically dependent upon the Mach number M (e.g. flow velocities from 1 to 140 m/s) and proportional to a Seebeck coefficient of the transducer. The power thus generated may be used to operate LED indicators visible from the exterior of the tube, a variety of sensors, and wireless communication with a central control system. Oxygen flow to a mask may be adjusted based on ambient oxygen content and data collected from a passenger wearing the mask, including a blood oxygen saturation level, pulse or respiration rate.

A breathing system for removing harmful contaminants, such as microbes and volatile organic compounds, is provided. The breathing system includes a face mask, an inhalation limb, and a plasmonic device. As a contaminated gas flows through an internal chamber of the plasmonic device, the contaminates are oxidized. Specifically, the internal chamber includes a source of photons spaced apart from the nanostructure. The nanostructure is coated in a plasmonic layer, including noble metal nanoparticles. The plasmonic layer is protected from oxidation through a photocatalyst layer disposed thereon.

A breathing system for removing harmful contaminants, such as microbes and volatile organic compounds, is provided. The breathing system includes a face mask, an inhalation limb, and a plasmonic device. As a contaminated gas flows through an internal chamber of the plasmonic device, the contaminates are oxidized. Specifically, the internal chamber includes a source of photons spaced apart from the nanostructure. The nanostructure is coated in a plasmonic layer, including noble metal nanoparticles. The plasmonic layer is protected from oxidation through a photocatalyst layer disposed thereon.

A snow burial survival mask has an exhaust tube connected to a headgear. An intake port of the exhaust tube is positioned adjacent to a breathing portion of the headgear in order to intake exhaled carbon dioxide (CO2)-rich air. An air pump connected to the exhaust tube pump the exhaled air from the intake port to an exhaust port away from the user's face, extending survival time in a snow burial situation. At least one burial detection sensor such as a motion sensor, light sensor and/or CO2 sensor is configured to activate the air pump based on detection of a burial event.

A snow burial survival mask has an exhaust tube connected to a headgear. An intake port of the exhaust tube is positioned adjacent to a breathing portion of the headgear in order to intake exhaled carbon dioxide (CO2)-rich air. An air pump connected to the exhaust tube pump the exhaled air from the intake port to an exhaust port away from the user's face, extending survival time in a snow burial situation. At least one burial detection sensor such as a motion sensor, light sensor and/or CO2 sensor is configured to activate the air pump based on detection of a burial event.

The present invention provides a system which allows a hose apparatus to be used to deliver water and air to the user at all times, eliminating the need for users to rely on breathable gas supplied by tanks. The invention includes the use of a breathable gas hose in the interior of the jacket of the water hose such that both breathable gas and water are delivered through the hose apparatus simultaneously. The breathable gas hose is protected within an outer jacket surrounding the water hose. The system allows for easy connect and disconnect of the air supply to the user's breathing apparatus and can be used with standard self-contained breathing apparatus (SCBA) typically used by firefighters. The system, however, overrides the SCBA system such that the user does not have to manually switch between the breathable gas and water hose apparatus and an SCBA system.

Disclosed is a device for protecting a user from smoke or fire, including a sealed dome-like cover. An opening provided in the cover front portion enables emergency oxygen to force smoke present under the cover to be expelled by positive air pressure through a space below the waist. The dome-like cover is overlaid from above the top of the head to at least the waist of the user and connected to a source of oxygen. The device is reversible so that it can also be used as a stretcher. The materials used enable use as a thermal blanket. The device can be provided compactly folded in a bag that can provide lumbar support thereby ensuring that miners will always carry the device with them. A step of vacuum sealing for a predetermined amount of time ensures malleability of the compact device for enhanced lumbar support and device longevity.

A breathing gas delivery system comprising a gas flow controller and at least one breathing apparatus. The gas flow controller has a body having an on/off switch, at least one gas input, and at least one gas output. The breathing apparatus comprises a T-shaped gas input having a body with two arms and a free end, a breathing bag coupled to the free end of the T-shaped gas input, a length of tubing having two opposed ends, wherein one end is coupled to the other arm of the T-shaped gas input, a filter coupled the length of tubing, and a nasal assembly coupled to the filter.