CPAP vs BiPAP comes down to how each machine delivers prescribed air pressure. A CPAP machine provides one pressure level during inhalation and exhalation, while a BiPAP machine provides separate levels for inhaling and exhaling. Understanding the difference can help patients and caregivers discuss equipment needs with their care team.
Because these devices serve distinct purposes, a healthcare professional evaluates each person’s needs and writes the prescription. With that guidance, patients can discuss setup, compatible supplies, and equipment questions with their clinician and supplier.
CPAP vs BiPAP: What is a CPAP machine?
CPAP stands for continuous positive airway pressure. The machine moves air through tubing and a mask, maintaining one steady, prescribed pressure as the user breathes in and out.
CPAP equipment commonly includes:
- A CPAP machine
- A mask, such as a nasal mask, nasal pillows, or a full-face mask
- Tubing
- A filter
- A humidifier or humidification chamber, if included or compatible
However, specific components and features vary by machine. Therefore, patients should consider mask style, tubing, humidification, and device compatibility alongside their prescription.
CPAP vs BiPAP: What is a BiPAP machine?
BiPAP commonly describes bilevel positive airway pressure equipment. The machine delivers two prescribed pressure levels: a higher level during inhalation and a lower level during exhalation.
Depending on the model and clinician’s instructions, the device may include features that support its prescribed operation. Like CPAP, a BiPAP system generally includes a machine, tubing, and a compatible mask.
In addition, “BiPAP” is a brand name used for some bilevel devices. Since not every bilevel machine is the same model or offers the same features, check the device documentation and prescription.
CPAP vs BiPAP: Key differences
| Feature | CPAP machine | BiPAP machine |
|---|---|---|
| Pressure delivery | One prescribed pressure level during inhalation and exhalation | Two prescribed pressure levels: one for inhalation and one for exhalation |
| Equipment type | Continuous positive airway pressure device | Bilevel positive airway pressure device |
| Prescription | Follow instructions from the prescribing healthcare professional | Follow instructions from the prescribing healthcare professional |
| Settings | Follow the prescription and device instructions | Follow the prescription and device instructions |
| Supplies | Typically includes a mask, tubing, and compatible filters or accessories | Typically includes a compatible mask, tubing, and accessories |
Overall, these differences explain how the equipment delivers pressure. However, they do not determine which device suits a particular person.
Why does the difference between CPAP and BiPAP matter?
Although both devices use a mask and tubing, CPAP and BiPAP deliver pressure differently. For that reason, the healthcare professional’s evaluation and prescription determine which equipment is appropriate.
The distinction also affects practical equipment questions, including:
- The machine and accessories specified in the order
- Compatible masks and components
- Applicable setup and operating instructions
- Replacement supplies the user needs
- Information the supplier may need to process the equipment request
If a prescribed device feels uncomfortable or proves difficult to use, contact the prescribing healthcare professional or equipment supplier. However, do not change settings, switch devices, or stop prescribed therapy without guidance from the clinician responsible for the treatment plan.
What to consider when obtaining breathing therapy equipment
Before a supplier provides equipment, the process may require a prescription or referral and supporting documentation. In addition, requirements vary according to the device, prescriber’s instructions, and patient’s insurance plan.
For clarity, ask the prescribing professional or supplier:
- What device does the prescription specify?
- Which mask options work with the machine?
- What supplies come with the equipment, and which may need replacement?
- How should I clean the machine and accessories according to the manufacturer’s instructions?
- What should I do if the mask does not fit as expected or the equipment is difficult to operate?
- What insurance information or documentation may be needed?
Insurance coverage and patient costs vary by plan and individual circumstances. A supplier can explain equipment-related steps and insurance questions; however, coverage and approval are not guaranteed.
Can you change from CPAP to BiPAP on your own?
No. The prescribing healthcare professional decides whether to choose or switch between CPAP and BiPAP. Accordingly, follow the clinician’s instructions for the device type and pressure settings. A supplier can answer equipment questions, but should not independently change prescribed settings or decide that a different device is appropriate.
CPAP and BiPAP equipment support in Saginaw
Patients and caregivers with questions about prescribed CPAP or BiPAP equipment can contact Pro-Air Medical Supply & Equipment in Saginaw. Pro-Air supplies respiratory equipment and offers equipment-related assistance, including support from licensed respiratory therapists where applicable. The team can discuss equipment options, compatible supplies, setup questions, and insurance-related steps.
Learn more about respiratory care and breathing therapy equipment, or call Pro-Air at 989-355-1601 or 844-445-1122. For treatment decisions, prescription questions, or setting changes, contact the prescribing healthcare professional. For general information about sleep apnea and positive airway pressure treatment, see the National Heart, Lung, and Blood Institute’s sleep apnea resource.