The interval throughout which a CPAP machine progressively will increase air stress from a low place to begin to the prescribed therapeutic stress is named its preliminary stress enhance characteristic. This characteristic permits customers to go to sleep extra simply with decrease stress, then comfortably obtain the total therapeutic stress as they sleep. For instance, a machine may start at 4 cm H2O and slowly enhance over 45 minutes to a last stress of 12 cm H2O.
This gradual stress enhance improves consolation and reduces widespread points like issue exhaling towards excessive stress when first falling asleep, claustrophobia, and aerophagia (air swallowing). This characteristic has grow to be a typical inclusion on fashionable CPAP gadgets, contributing considerably to raised affected person compliance and profitable remedy. Early CPAP machines lacked this consolation characteristic, making remedy initiation more difficult for some customers.