Water in CPAP Hose – Our 5 Tips on What You Can Do About It

Water in your CPAP hose and gurgling noises are a major annoyance for many CPAP patients. We’ll give you five recommendations on how to stop this and get back to sleeping peacefully.

Whilst CPAP therapy is highly effective, the disruptions don’t always make life easy for patients. To avoid these disruptions, users must pay attention to many seemingly minor details. The issue of condensation in the CPAP hose also appears inexplicable to many at first glance, as sometimes there’s water in the hose and other times there isn’t. Many CPAP users complain about condensation in their hose particularly during the winter months.

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How Does Condensation Form in a CPAP Hose? A Brief Explanation

The temperature in the bedroom is usually relatively cool compared to other rooms in the house. The warm, moist air you breathe cools down when it comes into contact with the cooler bedroom air. When air cools, its ability to hold moisture decreases – this leads to what’s known as condensation formation. This means the amount of water that air can store depends on the temperature. Warm air can hold a lot of water, whilst cold air can only hold a small amount.

Let’s apply this explanation to CPAP therapy. The air we exhale is relatively warm and moist. The air from the CPAP machine is also often warmed by the device (for example, through the humidifier). The hose itself, however, is surrounded by the cold air of the bedroom. When the warm, moist air flows into the hose, it cools down and can no longer hold as much water – the water condenses and droplets form in the hose.

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What You Can Do About Water in Your CPAP Hose

There are several solutions to this problem, which can also be combined:

1. Modern CPAP machines now regularly offer the option to connect a heated hose. The heating in the hose keeps the temperature, and therefore the humidification level of the breathing air, constant, thus preventing condensation.

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2. Another helpful measure can be to turn down the humidifier on your CPAP machine. Many CPAP machines have a humidifier, designed to prevent the airways from drying out and thus make therapy more comfortable for the patient. However, if the humidification level is set too high, this can lead to condensation in the hose, especially during the colder months. Users should experiment to find their optimal humidifier setting – this can vary considerably from person to person.

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3. According to sleep experts, the optimal sleeping temperature is between 15 and 18 degrees Celsius. However, if you’re experiencing condensation in your hose, you could raise the room temperature in your bedroom slightly at night. This can reduce the difference between the room temperature and the temperature of the humidified breathing air.

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4. To keep the air in the hose consistently warm, there are CPAP hose covers available. The cover insulates the CPAP hose from the colder air in the room, preventing the air circulating inside it from cooling down. Since there’s no temperature drop, no condensation can form. These products can be purchased online or simply made yourself. Another alternative would be to tuck the hose under your duvet. The effect is the same as with a hose cover.

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5. Another useful tip concerns the position of the machine. The humidifier should be the lowest point in the system, meaning the hose should first run over the patient’s head and then slope downwards towards the machine. The condensation then flows back to the machine and not into the mask. CPAP hose holders can be very helpful for optimal hose positioning. This also prevents gurgling noises in the hose.