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Fixed pressure CPAP machines deliver the constant pressure of air required to maintain an unobstructed airway while a user sleeps. The pressure required is prescribed by your doctor or a sleep specialist, and is designed to treat obstructive sleep apnea. Fixed pressure CPAP machines typically work by slowly increasing from a lower, comfortable pressure to the prescribed pressure required to keep the airways open during sleep.

What Determines the Fixed Pressure Needed?

You will be prescribed the correct pressure by your doctor or sleep specialist - but keep in mind, this fixed pressure can change over time as your needs do. Your sleep study results will determine the prescribed pressure your CPAP machine will be set to.

As your CPAP therapy needs change due to other health conditions, weight gain, illness or discomfort, you will need to be reevaluated by a sleep specialist, and the fixed pressure of your machine may need to be adjusted.

The severity of your sleep apnea will impact the level of pressure you require, and will likely change over time. There are many different factors that can determine the severity of sleep apnea, including age, weight and other health conditions. It’s important to continue CPAP therapy every night, so finding the right machine, accessories and pressure for you is important.

Benefits of a Fixed Pressure Machine

In order to improve user comfort and compliance, most fixed pressure devices have a ramp feature, which allows the machine to start at a lower pressure while the patient falls asleep, eventually rising to the fixed optimal treatment pressure. This can make a fixed pressure machine more comfortable, especially for CPAP users that require a high level of pressure while asleep, giving them the option for lower pressure while drifting off.

Some users of fixed pressure CPAP machines may benefit from the use of an APAP machine, which automatically adjusts the given air pressure during the night. Speak to your sleep specialist or the NSW CPAP experts if you want to learn more about APAP machines.

Here at NSW CPAP

We are Australian industry leaders in sleep apnea treatment, including fixed pressure CPAP machines, travel CPAP equipment, CPAP Masks, and other sleep therapy accessories. Reach out to one of our sleep therapy experts to find out more about what we offer here at NSW CPAP, and how we can help you on your sleep apnea treatment journey.