If you have been diagnosed with obstructive sleep apnea and your provider has recommended positive airway pressure therapy, APAP – automatic positive airway pressure – is often the most flexible and patient-friendly place to start. Rather than delivering a fixed pressure throughout the night, an APAP machine continuously monitors your breathing and adjusts its output in real time to deliver exactly the pressure your airway needs at any given moment.
At Gwinnett Pulmonary & Sleep, our sleep specialists have been helping patients across Gwinnett County manage sleep disorders since 1983. We provide APAP equipment, in-office fitting, and the ongoing clinical support that makes the difference between therapy that works and therapy that gets abandoned after a few weeks.
What Is an APAP Machine?
An APAP machine, also called an auto-titrating or auto-adjusting PAP device, is a non-invasive sleep therapy device that treats obstructive sleep apnea by delivering pressurized air through a mask to prevent airway collapse during sleep.
What sets APAP apart from standard CPAP is its ability to automatically adjust pressure breath by breath throughout the night. Built-in sensors continuously measure airflow, detect obstructions, and respond by increasing or decreasing pressure as needed, staying within a clinically prescribed range set by your provider.
The result is a therapy that adapts to natural changes in your sleep position, sleep stage, alcohol consumption, nasal congestion, and weight, all of which can affect the pressure your airway needs on any given night.
What Is APAP Used For?
APAP is primarily prescribed for patients with obstructive sleep apnea, the most common form, in which the muscles at the back of the throat relax during sleep and partially or fully block the airway. This causes repeated breathing interruptions that fragment sleep, reduce oxygen levels, and place strain on the cardiovascular system over time.
APAP is particularly well-suited for:
Newly diagnosed sleep apnea patients. Because APAP self-adjusts, it is often used as a first-line therapy option. It removes the need for a precisely calibrated fixed pressure from the outset, allowing treatment to begin while your body adapts to therapy.
Patients whose pressure needs fluctuate. If your sleep apnea severity varies based on sleeping position, weight changes, seasonal allergies, or other factors, APAP accommodates those fluctuations automatically rather than defaulting to a single fixed setting that may be too high on some nights and insufficient on others.
Patients who struggled with fixed-pressure CPAP. Some patients find constant high pressure uncomfortable, particularly during exhalation. Because APAP only delivers higher pressure when needed, many patients find it easier to tolerate and more comfortable to use consistently.
APAP is not appropriate for all patients and sleep conditions. Those with central sleep apnea, complex sleep apnea, COPD, or conditions requiring specific ventilatory support are typically better served by BiPAP therapy or other devices. Your provider will determine the right therapy based on your sleep study results and clinical profile.
Speak with a Sleep Therapy Specialist
What to Expect at Our APAP Clinic
Evaluation and Prescription
APAP therapy requires a confirmed diagnosis of obstructive sleep apnea, typically established through one of our sleep diagnostic services, like a home sleep study or in-lab polysomnography. Your sleep specialist will review your results and prescribe the appropriate minimum and maximum pressure range for your device.
Equipment Selection and Mask Fitting
Our clinic carries APAP machines from manufacturers with clinical validation. Our respiratory therapists will help you select the right device and mask style -nasal, full-face, or nasal pillow-based on your facial anatomy, breathing pattern, and sleep habits. Mask fit is critical. Even a well-calibrated APAP machine will underperform if the mask does not seal properly.
Setup and Patient Education
Before you leave the clinic with your equipment, our team walks you through device operation, humidity and temperature settings, daily cleaning, and what to expect during the first few weeks of therapy. Patients who understand their equipment from the start adjust more quickly and are significantly more likely to maintain consistent use.
Ongoing Monitoring and Support
Modern APAP machines generate detailed therapy data, including nightly usage hours, delivered pressure levels, mask leak rates, and residual apnea events. Our team reviews this data at follow-up visits to confirm your therapy is performing as intended and to make adjustments if needed. If you are not waking up feeling rested or are experiencing discomfort, contact us. Therapy data often reveals exactly what needs to change.
Why Choose Gwinnett Pulmonary & Sleep?
Sleep Specialists with Decades of Experience
Gwinnett Pulmonary & Sleep has been diagnosing and treating sleep disorders in Gwinnett County since 1983. Our sleep medicine specialists understand that effective APAP therapy begins with an accurate diagnosis and the right clinical guidance, not just a device shipped to your door.
Diagnosis, Equipment, and Follow-Up Under One Roof
From your initial sleep evaluation through equipment fitting and long-term therapy monitoring, everything is managed within our practice. You will not be handed off to a separate equipment supplier with no clinical connection to your care team.
Hands-On Support When You Need It
Starting PAP therapy is an adjustment. Mask discomfort, pressure sensitivity, and early compliance challenges are common and addressable. Our respiratory therapists are available to troubleshoot, refit, and guide you through the process so that temporary early difficulties do not become reasons to abandon treatment.
Patient-Centered Care
We understand that sleeping with a machine takes getting used to. Our team is committed to:
- Honest guidance on what the adjustment period looks like
- Responsive follow-up when something is not working
- Therapy data reviews that keep treatment optimized over time
- Clear communication between your sleep specialist and primary care provider
Gwinnett Pulmonary & Sleep serves patients across Gwinnett County from five convenient locations: Lawrenceville, Duluth, Snellville, Dacula, and Suwanee.
Begin APAP Therapy in Gwinnett County
If you have been diagnosed with obstructive sleep apnea or are not getting the results you need from your current therapy, our team can help you find the right solution. At Gwinnett Pulmonary & Sleep, we provide the diagnosis, equipment, and ongoing support to make sleep apnea treatment work and keep it working.
Call our office to schedule a sleep therapy consultation or request an appointment online.
Frequently Asked Questions
What is an APAP machine?
An APAP machine is an automatic positive airway pressure device that treats obstructive sleep apnea by delivering self-adjusting pressurized air through a mask. Unlike CPAP, which operates at one fixed pressure, APAP continuously monitors your breathing and adjusts its output in real time to deliver the minimum pressure needed to keep your airway open.
What is the difference between APAP and CPAP?
CPAP delivers a single fixed pressure throughout the night. APAP operates within a prescribed range and automatically adjusts pressure breath by breath based on your airway’s changing needs. Many patients find APAP more comfortable because pressure is only as high as it needs to be at any given moment.
Is APAP better than CPAP?
Neither is universally better; the right choice depends on your diagnosis, pressure needs, and personal comfort. APAP offers greater flexibility and is well-suited for patients with fluctuating pressure needs or those new to PAP therapy. Your sleep specialist will recommend the most appropriate option based on your clinical profile.
Who is APAP not suitable for?
APAP is designed specifically for obstructive sleep apnea. It is not appropriate for patients with central sleep apnea, complex sleep apnea, COPD, or conditions requiring specific ventilatory pressure support. These patients are typically better served by BiPAP or other therapies.
Do I need a sleep study before getting an APAP machine?
Yes. A confirmed diagnosis of obstructive sleep apnea is required before APAP therapy can be prescribed. This is typically established through a home sleep test or an in-lab sleep study. Our team can coordinate this evaluation if you have not yet completed one.
How do I know if my APAP therapy is working?
Your APAP machine records nightly therapy data, including usage hours, pressure levels, mask leak rates, and residual apnea events. Our team reviews this data at follow-up visits to confirm your therapy is effective and to make any necessary adjustments. Feeling consistently rested and alert during the day is also a strong indicator that therapy is working.
Is APAP covered by insurance?
APAP therapy and equipment are covered by Medicare and most private insurance plans when obstructive sleep apnea has been diagnosed, and the medical necessity criteria are met. Our team will verify your coverage before you begin, so you understand your benefits and any out-of-pocket costs in advance.
What if I am not tolerating my APAP mask?
Mask discomfort is one of the most common early challenges with PAP therapy and one of the most solvable. Our respiratory therapists can refit your mask, recommend alternative styles, and adjust humidity and pressure settings to improve comfort. Contact our clinic before giving up on therapy; most tolerance issues have straightforward solutions.