Summary: What is a BiPAP or BiLevel machine?
A BiPAP machine (also referred to as BiLevel or VPAP) delivers two separate and distinct pressures. A higher pressure is need for inhalation, while a lower pressure is needed for exhalation. The machine alternates between the two pressures which are set per the doctor's order or prescription. A prescription for a CPAP machine may not be used to purchase a BiPAP machine.