A lung exercise apparatus and method with an enclosure, with an inside, an outside and an open top, configured to hold a liquid of a first density. An additive to the liquid that increases the first density such that a person in the liquid is more buoyant. Weight removably connectable with the person such that a person in the enclosure is held vertical in the enclosure and partially immersed in the liquid below a surface of the liquid and with some of a person's body above the surface of the liquid. And a harness that is removably connectable with the person to hold some of the person's body above the surface of the liquid where lungs in a person's body are below the surface of the liquid.

A breathing control device formed from a regulator having a stem opening and aperture opening. The regulator having a mouthpiece for inhaling and exhaling into a diverter bag coupled to the regulator. The stem opening and aperture opening available to control the amount of ambient air drawn into regulator to regulate the ratio of carbon dioxide to oxygen level drawn from the diverter bag to assist in treating panic and anxiety attacks associated with hyperventilation and migraines. The diverter bag retaining the exhaled breath expelled by the individual for reuse, the aperture opening can be capped to limit all ambient air through the stem opening. The diverter bag becomes a visual focus as exhaled breathing causes the bag to unfold with thought provoking indicia.

A normobaric hypoxia trainer including a training chamber, an intake fan for allowing ground level air to be introduced into the training chamber; an exhaust fan for removing air from the training chamber; a plurality of circulation fans for mixing interior air of the training chamber to create a uniform oxygen concentration within the training chamber; a nitrogen generation system, the nitrogen generating system including a plurality of polysulphone membrane cartridges for separating out nitrogen from air; a compressor for supplying compressed air to the nitrogen generation system; a pressure regulator for regulating the pressure of the compressed air; a heater for controlling temperature of the compressed air, the heated pressure regulated compressed air passing through the polysulphone membrane cartridges such that nitrogen can be separated out from the air; and, a flow controller for controlling flow rate of the separated nitrogen into the training chamber.

A normobaric hypoxia trainer including a training chamber, an intake fan for allowing ground level air to be introduced into the training chamber; an exhaust fan for removing air from the training chamber; a plurality of circulation fans for mixing interior air of the training chamber to create a uniform oxygen concentration within the training chamber; a nitrogen generation system, the nitrogen generating system including a plurality of polysulphone membrane cartridges for separating out nitrogen from air; a compressor for supplying compressed air to the nitrogen generation system; a pressure regulator for regulating the pressure of the compressed air; a heater for controlling temperature of the compressed air, the heated pressure regulated compressed air passing through the polysulphone membrane cartridges such that nitrogen can be separated out from the air; and, a flow controller for controlling flow rate of the separated nitrogen into the training chamber.

Disclosed are biofeedback methods and devices suitable for providing biofeedback useful for helping a user control an own breathing, for example, to help in inducing deep breathing, and such biofeedback devices further comprising a dispenser for dispensing an inflatable substance.

An aerosol-generating system is provided, including: a health monitoring device including a sensor to collect health data from a user, a controller to receive the health data and determine a health parameter based on the data, and a health monitoring device power supply to supply electrical power to the controller and the sensor, the device not being an aerosol generator; an aerosol-generating device including a cavity to receive a plug of tobacco, an aerosol-generator to generate aerosol from the plug, and an aerosol-generating device power supply configured to supply electrical power to the aerosol-generator; and a charger including a cavity to receive the health monitoring and aerosol generating devices, and a charger power supply to transfer electrical power to the health monitoring device power supply, and from the charging unit power supply to the aerosol-generating device power supply, the cavity being a single cavity.

Aspects of the present disclosure provide methods, apparatuses, and systems for non-linear breathing entrainment. According to an aspect, a final breathing period is selected, and a current breathing period of a user is measured. A guiding stimulus configured to alter the current breathing period towards the final breathing period over an interval of time at a non-linear prescribed rate is output. A difference between the current breathing period and a target breathing period along the non-linear linear prescribed rate is determined. Based at least in part on the difference, the guiding stimulus and/or the non-linear prescribed rate are adjusted. The guiding stimulus and the non-linear prescribed rate may be stabilized, increased, or decreased to enable the user to reach the final breathing period.

An apparatus and method for semi-occluded vocal tract exercises comprises an elongated body having proximal and distal ends. A user can hold the proximal end between the lips. An inlet configured to receive air blown from the mouth of a user is disposed at the proximal end. An exit is disposed opposite to the inlet at the distal end. A channel extends from the inlet to the exit. Apertures of uniform or non-uniform dimensions are disposed over the elongated body. The apertures are located at different distances from the entry. The apertures and the exit are in fluid communication with the inlet. The user can adjust the resistance offered to a flow of air caused by the air blown to the required level by blocking one or more apertures or the exit. The same apparatus can offer a wide range of variable resistance as per the need of a user.

An apparatus and method for semi-occluded vocal tract exercises comprises an elongated body having proximal and distal ends. A user can hold the proximal end between the lips. An inlet configured to receive air blown from the mouth of a user is disposed at the proximal end. An exit is disposed opposite to the inlet at the distal end. A channel extends from the inlet to the exit. Apertures of uniform or non-uniform dimensions are disposed over the elongated body. The apertures are located at different distances from the entry. The apertures and the exit are in fluid communication with the inlet. The user can adjust the resistance offered to a flow of air caused by the air blown to the required level by blocking one or more apertures or the exit. The same apparatus can offer a wide range of variable resistance as per the need of a user.

A positive expiratory pressure-generating device for reducing breathlessness in a subject with one or more pulmonary disorders is disclosed. The device is rigid and hollow and can be held in the mouth of the subject. The device has at least one air chamber, at least one opening in the portion of the device that is held in the mouth and at least one additional airflow orifice. The device is configured to increase expiratory resistance and can be supported by the mouth of the subject without the need for additional support by hands, another device or other means.