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BiLevel Positive Airway Pressure | Stanford Health Care Skip to main content Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience. Menu Search Menu Search Home Close Doctors Clinics & Locations Conditions & Treatments Clinical Trials MyHealth Login Patients & Visitors Billing Insurance Financial Assistance Medical Records Contact Us Video Visits Get a Second Opinion COVID-19 Resource Center Healthcare Professionals Referring Physicians Nursing Allied Healthcare About Us Quality & Safety Facilities Services & Planning Sustainability Careers Newsroom Make a Donation Stanford Health Care – Now Doctors & Providers Clinics & Locations Conditions & Treatments Patients & Visitors MyHealth Billing Insurance Medical Records Support Groups Help Paying Your Bill COVID-19 Resource Center Community Health Locations and Parking Visitor Policy Hospital Check-in Video Visits International Patients Contact Us View All Information for Patients & Visitors We are available to assist you 24/7. 650-498-3333 [email protected] View the changes to our visitor policy View information for Guest Services New to MyHealth? Manage Your Care From Anywhere. Access your health information from any device with MyHealth. You can message your clinic, view lab results, schedule an appointment, and pay your bill. ALREADY HAVE AN ACCESS CODE? Activate Account DON'T HAVE AN ACCESS CODE? Create a New Account NEED MORE DETAILS? Learn More about MyHealth Learn More about Video Visits MyHealth for Mobile Get the iPhone MyHealth app Get the Android MyHealth app WELCOME BACK Forgot Username or Password? Need Help? Clear BiLevel Positive Airway Pressure BiLevel Positive Airway Pressure BiLevel positive airway pressure (BiLevel) machines have two different pressures; a higher pressure when breathing in and a lower pressure when breathing out. By alternating the inhalation and exhalation pressures, the BiLevel encourages the lungs to operate more efficiently. Most BiLevel machines work by switching between the two air pressures in response to your breathing. This is known as spontaneous BiLevel. However, patients with more complicated pulmonary disorders (chronic obstructive pulmonary disease, emphysema, etc.) may require the machine to set the respiratory rate through either a backup rate or a timed rate. Most BiLevel machines can deliver up to 30 cm H2O. BiLevel machines can also be an effective treatment option for central sleep apnea . Previous Section Next Section Close