What types of CPAP machines are available?

There are several types of CPAP machines available. 

There are three main categories of machines:

CPAP which stands for Continuous Positive Airway Pressure. This device provides airflow at a constant fixed pressure to keep your airway open during the night. 

APAP which stands for Automatic Positive Airway Pressure. This device uses a specific algorithm that determines what pressure setting to automatically adjust your machine to on a breath by breath basis, to keep your airway open.

BiPAP or VPAP is a type of ventilator, which is a device that helps with breathing if you struggle to breathe on your own. It may help you if you have a medical problem that impairs your breathing. For example, chronic obstructive pulmonary disorder (COPD) or obesity hypoventilation syndrome.