Continuous positive airway pressure (CPAP) machines require regular cleaning to prevent bacteria growth. People can often clean CPAP machines using water and gentle cleansers, although device instructions vary. And while automatic CPAP cleaners are available, they are not approved by the Food and Drug Administration (FDA).
Obstructive sleep apnea (OSA) causes a person’s upper airway passages to become blocked during sleep,
However, positive airway devices, such as a CPAP machine, can help people manage OSA.
This article discusses what CPAP machines are, whether they require cleaning, how to clean them, and more.
A CPAP blows pressurized air into an individual’s airways to keep them open, which helps improve their breathing during sleep. To keep the nasal passages from drying out, some individuals may use a humidifier with their CPAPs to keep the pressurized air moist.
A CPAP and all its parts need frequent cleaning. This takes time and has fueled considerable interest in automatic CPAP cleaners. However, none of these cleaning devices have approval from the FDA, which regulates drugs, food, biological products, and medical devices.
Bacteria and fungi can grow in CPAPs, as can viruses.
The best way to clean a CPAP is to follow the manufacturer’s guidelines. Often, this involves using warm water and a gentle cleanser, such as a mild detergent or baby shampoo. Some manufacturers might also suggest using a mixture of water and white vinegar in equal parts.
People should clean the following CPAP parts:
- CPAP unit
- mask or nasal pillows
The American Thoracic Society recommends the following schedule for cleaning a CPAP:
- Empty the water from the humidifier and refill with distilled water only.
- Wipe the mask or nasal pillows with a mild detergent.
- Wipe the CPAP device with a soft cloth. Do not place it in water.
- Wash the humidifier chamber. Air dry carefully.
- Wash and rinse the tubing. Let it air dry.
- Disassemble the mask or nasal pillows and tubing. Wash, rinse, and air dry.
- Handwash the headgear. Rinse and air dry.
- Wash the filter if the device has a sponge-like reusable one.
- Replace the filter if it is disposable.
The American Sleep Apnea Association recommends that people avoid using the following when cleaning their CPAPs:
- harsh detergents
- alcohol-based cleansers
- antibacterial cleansers
There are two main types of automatic CPAP cleaners: one uses ozone as the active ingredient to clean all the CPAP parts, while the other uses UV light. However, neither has authorization from the FDA for cleaning CPAPs.
This means the
Failure to keep a CPAP clean can lead to illnesses for users. If a person does not change the water in the CPAP reservoir regularly and replace it with fresh, distilled water, bacteria and mold can grow and cause illness. It may also worsen existing conditions. In addition, after regular contact with the oil and organisms on the skin, the mask can cause a skin rash or infection.
The FDA has not authorized any automatic cleaner for cleansing CPAPs. Agency tests also revealed that devices using ozone generated unsafe levels of ozone gas. In addition, cleansing devices using UV light might not consistently provide enough UV light to disinfect a CPAP machine.
- trouble breathing
- asthma attacks
- nasal irritation
In a 2018 study, a person using a CPAP to manage OSA noticed their asthma symptoms worsened to the point that they wanted to discontinue CPAP treatment. This individual was also using an ozone CPAP cleaner. Instead of stopping CPAP treatment, they ceased using the cleaning device, which improved their asthma symptoms within 2–3 days.
OSA is a common condition that causes people to stop breathing as they sleep. It increases the risk of chronic health conditions but is manageable through treatment with a CPAP machine.
CPAP machines require frequent and thorough cleaning. Most manufacturers recommend using water and gentle cleansers to clean different parts of the device by hand.
While automatic CPAP cleaners are available and often use ozone or UV to clean CPAP machines, there are significant concerns about the safety and effectiveness of these devices. None of them have approval from the FDA.