Evaluation of a New Nasal Pillows Mask for the Treatment of Obstructive Sleep Apnea

Inclusion Criteria: * Are ≥22 years of age * Weigh ≥66 lbs * Have been formally diagnosed with OSA by a physician * Have an AHI ≥5 on a diagnostic night * Have been prescribed PAP therapy to treat OSA by a physician * Are an existing nasal pillows mask user * Have been using a nasal pillows mask for ≥3 months prior to enrolment into the study * Are compliant with PAP therapy for ≥4 hours per night for 70% of nights * Are fluent in spoken and written English * Possess the capacity to provide informed consent Exclusion Criteria: * Are intolerant to PAP therapy * Possess, or suffer from, anatomical or physiological conditions which make PAP therapy inappropriate * Are currently diagnosed with respiratory disease or CO2 retention * Are pregnant or think they may be pregnant * Have an IPAP pressure of \>25 cmH2O * Persons who use a PAP therapy machine for the delivery of medicines, except O2 * Use a PAP therapy machine that does not possess data recording capabilities to capture AHI and leak information that is accessible to OSMI