What is VPAP? And how is it different than other similar technologies like CPAP and APAP?
The short answer: An abbreviation of variable positive airway pressure, VPAP™ is the Resmed brand name for a specialized form of positive airway pressure (PAP) that provides two continuous levels of pressure. It’s called “variable” because it varies between two different levels to better meet the needs of people with sleep apnea. Because of this double-level approach, VPAP is also commonly known as “bilevel” PAP. Again, bilevel literally refers to two levels of air pressure: one for exhaling, and one for inhaling.
The main types of PAP are CPAP, APAP and VPAP/bilevel.