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In addition to conducting sleep studies, Sleep Centers of Alaska also sells CPAP devices directly to the patient along with replacement parts -- such as masks, hoses, and filters -- which are periodically needed with ongoing use of the device.

The CPAP machine is an electrical device, small enough to sit on a nightstand. It takes in air from the room, lightly pressurizes it and delivers it through a flexible tube to a special mask worn by the patient during sleep. The pressurized air helps hold the air passages in the nose and throat open during sleep and eliminates snoring and pauses in breathing. By using the CPAP device, breathing becomes regular, snoring stops, and restful sleep is restored.

To determine the optimal pressure settings for use of the CPAP device, a titration polysomnography is conducted. During this sleep study, the sleep technician tests various CPAP levels while the patient sleeps to find the optimal setting by trial and error. Proper titration requires identification of the minimum CPAP level that abolishes obstructive apneas and/or hypopneas, oxyhemoglobin desaturation, respiratory effort–related arousals, and snoring in all sleep stages.