Frequently Asked Questions

What is CPAP?

CPAP (Continuous Positive Airway Pressure) is a highly effective treatment for obstructive sleep apnoea.
It involves wearing a mask on the face that is connected to a small machine. The machine acts as an “air pump”, delivering pressurised air through the mask, preventing upper airway collapse and obstruction during sleep.

A large range of different masks are available. Broadly they are divided into:

  • Full face masks which cover the nose and mouth
  • Nasal masks which cover the nose only; and
  • Nasal pillows which are soft prongs which sit in the openings of the nostrils

Dr Adrian Chazan


Dr Chazan is a Respiratory & Sleep Physician, and General Physician. Born in Melbourne, he undertook his basic medical training at the University of Melbourne. With a passion for sleep and breathing, he trained at world-renowned centres of excellence in Melbourne and Sydney, including Westmead Hospital, the Alfred Hospital and Monash Medical Centre. Adrian has been involved in research activities in the fields of sleep apnoea, chronic obstructive pulmonary disease and exercise physiology.

Adrian utilises the latest findings in sleep research as well as the emerging technologies in diagnosis and treatment. He takes a patient-centered approach to medical care with the aim of empowering his patients to achieve better sleep and optimal long-term health outcomes.