Effectiveness of Continuous Negative External Pressure in Preventing Upper Airway Impairment During Routine Colonoscopy

Inclusion Criteria: * Male or female subjects undergoing elective colonoscopy at the Study Site who have fewer than three or more than three positive responses on the STOP BANG questionnaire Exclusion Criteria: * Presence of severe cardiopulmonary or neurologic disease as determined by the investigator * History of vascular fragility associated with cutaneous pressure * History of hypersensitivity to silicone * Inability to properly fit cNEP collar to the subject * The presence of excessive facial hair in the region where the cNEP collar is positioned * Known carotid vascular disease, previous major neck surgery or radiation therapy to the cervical region * Presence of anatomical abnormalities in the neck or pharyngeal region (such as enlarged tonsils) * Inability to provide informed consent