An oxygen generator outlet manifold assembly that includes an outlet manifold and an end cover. The outlet manifold includes a main body portion with inner and outer surfaces and at least a first hose connector that includes an outlet defined therein extending from the main body portion. The main body portion defines a main body portion interior that includes a connection opening defined in the inner surface, a ring chamber, a flow space and a distribution chamber. An annular ring is positioned in the main body portion chamber interior and separates the ring chamber from the distribution chamber. The end cover includes a generator outlet portion extending therefrom that is received in the connection opening. The generator outlet portion includes an outlet valve having an open and a closed state and includes an interior chamber that cooperates with the ring chamber to define an outlet chamber. An oxygen flow path is defined through the open valve, to the outlet chamber, through the flow space, through the distribution chamber and to the outlet of the first hose connector.

In some examples, a temperature control system comprises a heat exchanger providing thermal communication between inlet air and an avionics temperature controlled fluid, for controlling the temperature of the inlet air for use in an onboard oxygen generating system (OBOGS). The inlet air that exits the heat exchanger can be used as supply air for the OBOGS.

A cooling device for a closed-circuit respirator includes a device housing and a coolant arrangement. The device housing has a gas inlet, which is configured to admit a gas to be cooled into the device housing, and has a gas outlet, which is configured to let the gas admitted through the gas inlet into the device housing out of the device housing. The coolant arrangement is arranged in the device housing and the coolant arrangement has a first coolant with a first melting point T1 and a second coolant with a second melting point T2. The first coolant and the second coolant are arranged in the coolant arrangement such that no direct contact is possible between the first or second coolant and the gas being cooled. The first melting point T1 is different from the second melting point T2.

A cooling element for use within a cooling device of a closed-circuit respirator, includes an element housing, which has a liquid-tight cap and is filled with a coolant, which has a melting point below 50 C., especially below 45 C., preferably below 40 C. A sensor element is arranged in contact with the coolant within the element housing such that the sensor element can be moved in a direction of the gravity acting on the sensor element in the liquid state of the coolant during the use of the closed-circuit respirator by a user of the closed-circuit respirator.

A breathing device that warms inhaled air by absorbing the heat of exhaled air into one side of a metallic membrane that transfers that heat to incoming air on the other side of the membrane. Flow of inhaled and exhaled air is separated by the membrane and is controlled by check valves. The volume of exhaled air that must be inhaled again before getting any fresh air is thereby minimized. The primary purpose is to warm inhaled air, but sensors within it can facilitate gas analysis on exhaled air to diagnose and predict various diseases. An electric heater, vibrational de-icer, and humidifier are additional options.

A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.

In general, this utility model belongs to the technological sector of face masks and more specifically refers to a new arrangement applied to a humidifier and protection mask. The accessory developed is an innovative alternative to the state of the art, proposing practical, versatile and low-cost face masks, disposable or not, capable of humidifying inhaled air in a simple and economical way, without the use of external energy. Accordingly, the mask has a filter for particles, composed of a material that retains fluids and can be replenished simply by the user himself, preferably with water or other fluids, with spaces that allow the entry of air taken in, so that inhaled air containing oxygen only enters into the mask through the humidifier filter. Masks can be disposable or not, and reusable ones are made of washable materials. Due to the fact that the humidifier filter material can be replaceable for reasons of hygiene, it can be removed from the base or body of the mask and replaced for a new one.

A hypothermia-prevention device is provided. The hypothermia-prevention device provides a three-port valve system having an inhalation port, a respiration port and an exhalation port, respectively wherein an in-take valve fluidly connects the inhale port to the respiration port and wherein an out-take valve fluidly connects the exhale port to the respiration port. The out-take and in-take valves are adapted to respond to the negative and positive pressure urged by way respiration of a user through the respiration port so that the exhale air is directed through the exhale port while colder inhale air is excluded through the exhalation port. The exhale port provides an out-tube for selectively directing the warmer exhale air to necessary body parts of the user.

Provided is a powered air blower unit for delivering air flow to a user with constant air flow or varying speeds of air flow. The air blower unit may also include a filter for purifying the air.

A patient interface of a respiratory therapy system is provided, and includes: a. a mask body; b. a mask seal secured to the mask body and configured to form a seal with the user's face, at least around the user's mouth; the mask body and mask seal being arranged to define an interior breathing Chamber of the patient interface; and c. an inlet to the breathing chamber configured to receive a flow of breathable gases into the breathing chamber. To assist in allowing a user to speak clearly whilst wearing/using the patient interface, a user actuatable speech valve is provided on the patient interface and is operable to selectively occlude and open a speech flow path from the breathing chamber to atmosphere when the user wishes to speak.