Positive pressure therapy systems and methods

A method of providing positive pressure therapy to a user using a positive pressure therapy system comprising:

• a compression system that produces pressurized air during use, the compression system being couplable to a mask via one or more conduits;
• an oxygen concentrator coupleable to a mask, wherein the oxygen concentrator is capable of producing oxygen enriched gas from air,
• the method comprising:
• supplying pressurized air from the compression system to a mask that has been coupled to a user's face;
• assessing an onset of inhalation of the user;
• and
• supplying oxygen enriched gas from the oxygen concentrator to the mask when the onset of inhalation of the user is detected.

A method of providing positive pressure therapy to a user, using a positive pressure therapy system, comprising:

• a compression system that produces pressurized air during use, the compression system being couplable to a mask via one or more conduits;
• an oxygen concentrator coupleable to a mask, wherein the oxygen concentrator is capable of producing oxygen enriched gas from air,
• the method comprising:
• supplying pressurized air from the compression system to a mask that has been coupled to a user's face;
• assessing an ambient pressure;
• assessing a pressure inside the mask while the pressurized air is supplied to the mask coupled to the user's face;
• assessing a correction pressure, wherein the correction pressure is a function of the ambient pressure and the assessed pressure inside the mask;
• automatically assessing a pressure inside the mask while the pressurized air is supplied to the mask coupled to the user's face;
• assessing an adjusted assessed pressure inside the mask as a function of the automatically assessed pressure and the correction pressure;
• supplying oxygen enriched gas from the oxygen concentrator to the mask if the adjusted assessed pressure inside the mask is less than a predetermined pressure.

A method of providing positive pressure therapy to a user, using a positive pressure therapy system, comprising:

• a compression system that produces pressurized air during use, the compression system being couplable to a mask via one or more conduits;
• an oxygen concentrator coupleable to a mask, wherein the oxygen concentrator is capable of producing oxygen enriched gas from air,
• the method comprising:
• supplying pressurized air from the compression system to a mask that has been coupled to a user's face, the mask comprising a venting port that allows gas to exit the mask;
• automatically assessing a flow rate of gas exiting the mask through the venting port;
• assessing a change in the flow rate of gas exiting the mask through the venting port;
• supplying oxygen enriched gas from the oxygen concentrator to the mask if the detected change in the flow rate indicates a decrease in the flow rate of gas exiting the mask.