This devices isn't as unpleasant as it sounds - most people get used to the sensation fairly quickly. And they feel much better because their sleep has improved. As with any form of treatment, physicians and patients may need to review capabilities and features and select carefully among the several types of device and the specific brand and model. On inspiration, a higher pressure is needed to prevent apneas, hypopneas, or snoring. But when you breathe out, you may feel more comfortable if there is less resistance, and the pressure can be lower while protecting you from apnea.
Several manufacturers make bi-level airway pressure devices.
In the belief that the reduction of total airway flow would provide greater comfort to the patient and encourage patients to use the airway pressure treatment on a regular basis, several manufacturers have begun to offer a new generation of treatment devices. These devices incorporate flow and pressure sensors and automatic regulation systems. There are three basic approaches. This device is no longer manufactured. As professionals in the field of sleep disorders gain experience with these devices and their appropriate applications, they may provide an additional path to diagnosis as well as relief for selected patients.