The invention relates to a method of determining water level in a humidifier chamber that is part of a humidified gases delivery apparatus and system. The method comprising the steps of delivering power to a heater plate, varying the power delivered to the heater plate, measuring the rate of change of temperature and determining the level of water based on the heating characteristics of the volume of water within the chamber, in particular determining the level of water within the chamber based on the rate of change of temperature and the supplied power.

Introduced are methods and systems for an adjustable bed device configured to: gather biological signals associated with multiple users, such as heart rate, breathing rate, or temperature; analyze the gathered human biological signals; and heat or cool a bed based on the analysis.

A humidifier for humidifying a flow of pressurized breathable gas to be delivered to a patient includes a dock with a device compartment configured to at least partially removably receive in a vertical direction an RPT device that is configured to supply the flow of pressurized breathable gas, and a humidification compartment fluidly connected to the device compartment, the humidification department being configured to at least partially removably receive in a vertical direction a humidification tub configured to contain a supply of water. The dock is structured to convey the flow of pressurized breathable gas through the dock from the device compartment to the humidification compartment.

The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.

Headgear for use with a respiratory mask can include a continuous and substantially curved elongate member extending in use below a user's nose and at least two headgear straps capable of attachment to the ends of the elongate member. A mask attachment on the elongate member is disposed to sit below or on one of said user's nose, mouth, upper lip and an inlet to the mask. The attachment is capable of receiving the mask.

A spray device includes a useful substance having an antioxidative effect or an anti-inflammatory effect, a sprayer configured to spray the useful substance into a space in which a target person is present, and a controller configured to control the sprayer. The useful substance sprayed by the sprayer has a particle diameter of 1 ?m to 10 ?m. An air treatment device includes the spray device.

A fluid connector between patient interface and a respiratory therapy device and a vent adaptor for a respiratory pressure therapy system. The fluid connector comprising two parts, the first of which includes a seal and a latching portion and the second a complementary latching portion configured to engage the former to provide a fluid flow patch between the two parts. The vent adaptor comprising a vent assembly comprising a vent housing and an annular plate including an array of holes to discharge the pressurised gas to atmosphere and an deformable membrane which presses against the annular plate.

A method, system and apparatus for assessing the coupling between lung perfusion and ventilation in a patient who is mechanically ventilated or who is breathing spontaneously through a conventional artificial airway is provided. Embodiments of the apparatus comprise an adaptor configured to fit between the artificial airway and mechanical ventilator, a measuring chamber in constant fluid communication with the adaptor via one or more measuring chamber sampling ports, and a monitoring unit where data obtained from temperature and relative humidity sensors located in the measuring is calibrated, sampled, logged and analyzed together with anthropometric patient data to display a coupling index Qi and to enable ongoing diagnostic cardio-pulmonary monitoring of a patient by comparing changes in the patient's index during a monitoring interval.

Disclosed are a mouthpiece, and an atomizing device comprising the mouthpiece, the mouthpiece comprising: an upper cover body; a sensor assembly; and a base, wherein both the upper cover body and the base are hollow structures which open at both ends; the upper cover body is sleeved on one end of the base; an inner surface of the upper cover body and an inner surface of the base jointly define an inner cavity of the mouthpiece; the sensor assembly is fixed in the inner cavity of the mouthpiece; an air passage gap is formed in the inner cavity of the mouthpiece; and the sensor assembly includes at least one sensor that functions to detect the temperature or humidity or both of the smoke. The disclosed mouthpiece can detect the temperature and/or humidity of the smoke in real time.

A medical gas condition system for supplying a liquid hydration fluid to a hydrator before or during an ongoing medical procedure by coupling the flow of liquid hydration fluid into the hydrator to either the absence of flow of medical insufflation gas into the hydrator or to a condition where the liquid hydration fluid can be absorbed by a hydrator instead of being forced through the hydrator in liquid form.