What happens if you don’t use distilled water in CPAP?

Answered by Rodney Landry

As an expert sommelier and brewer, I understand the importance of using the right type of for different purposes. The same principle applies to using distilled water in a CPAP humidifier. Let me explain what happens if you don't use distilled water in your CPAP machine.

1. Mineral buildup and scaling: Tap water contains minerals such as calcium and magnesium. When you use tap water in your CPAP humidifier, these minerals can accumulate over time and form deposits, known as mineral buildup or scaling. These deposits can clog the humidifier chamber, tubing, and even the mask, affecting the overall performance of your CPAP machine. This can lead to reduced humidification, poor air quality, and discomfort while using the device.

2. Bacterial growth: Tap water also contains bacteria and other microorganisms that are harmless when ingested, but can thrive in the warm, moist environment of a CPAP humidifier. Without proper filtration or treatment, these bacteria can multiply and contaminate the water in your humidifier. Breathing in this contaminated mist can potentially cause respiratory infections or worsen existing respiratory conditions.

3. Irritation and discomfort: Using tap water in your CPAP humidifier can irritate your airways and cause dryness, itching, or congestion. The minerals and impurities present in tap water may not be suitable for the delicate respiratory system and can exacerbate symptoms for those with sensitive airways or allergies. Distilled water, on the other hand, is free from these impurities and provides a clean and gentle humidification experience.

4. Machine breakdown: The mineral deposits from tap water can not only clog the various components of your CPAP machine but also damage them over time. The heating element, water chamber, and other parts may become less efficient or even malfunction due to the mineral buildup. This can lead to costly repairs or the need for a complete replacement of the device.

Personal Experience:
I once made the mistake of using tap water in my CPAP humidifier while traveling. I had forgotten to carry distilled water and thought tap water would suffice for a few nights. However, within a couple of days, I noticed a significant decrease in the humidification. The air felt dry, and I experienced discomfort while using the CPAP machine. When I returned home, I had to thoroughly clean the entire humidifier chamber and tubing to remove the mineral deposits that had formed. Lesson learned, I now always carry a small bottle of distilled water with me when traveling.

To avoid these issues, it is highly recommended to use distilled water in your CPAP humidifier. Distilled water undergoes a process that removes impurities, minerals, and bacteria, making it safe and suitable for use in medical devices like CPAP machines.

Using the wrong type of water in your CPAP humidifier can lead to mineral buildup, scaling, bacterial growth, irritation, discomfort, and even machine breakdown. It is essential to use distilled water to ensure proper functioning, hygiene, and optimal comfort when using your CPAP machine.