The FDA puts it simply: “Most CPAP accessories like masks, hoses and CPAP machine humidifier tanks can be cleaned with mild soap and water as described in the owner’s manual” (FDA consumer update). You don’t need a gadget. You need a routine.
Why it matters
Per the FDA, germs from your lungs, throat or mouth can get into the mask or hose, germs on your skin can transfer to the mask, and dust, mold or other allergens can get in too. Dust and dirt can also make the machine more likely to break (FDA consumer update). ResMed’s mask guide adds that regular cleaning helps “prevent the growth of germs that can adversely affect your health” (ResMed AirFit F20 user guide). The AASM also suggests cleaning the mask daily to help with leaks (AASM PAP troubleshooting FAQ).
The routine: ResMed AirSense 11 with AirFit F20
| When | Part | How |
|---|---|---|
| Daily | Humidifier tub | Empty, wipe thoroughly with a clean disposable cloth, dry out of direct sunlight, refill: distilled water only in the HumidAir 11 standard tub, or drinking-quality water in the cleanable tub |
| Daily / after each use | Mask frame, elbow, cushion | Rinse under running water and brush clean. Soak up to 10 minutes in warm water with mild liquid detergent, shake, brush the vents and joints, rinse, air dry out of direct sunlight |
| Weekly | Air tubing | Warm water with mild dishwashing liquid. Not in a dishwasher or washing machine |
| Weekly | Humidifier tub and outlet connector | Warm water with mild dishwashing liquid, or 1 part vinegar to 9 parts water at room temperature. Both may go in a dishwasher |
| Weekly | Mask headgear | Hand wash in warm water with mild liquid detergent, rinse, squeeze, air dry out of direct sunlight |
| Weekly | Device exterior | Wipe with a dry cloth |
| Every 6 months, or sooner if holed or blocked | Air filter | Replace. It is not washable or reusable |
Sources: ResMed AirSense 11 user guide and ResMed AirFit F20 user guide. Components should not be washed above 131°F (55°C) (AirSense 11). Other brands differ, so use your own manuals.
Inspect as you clean
From the AirSense 11 guide:
- Replace the humidifier tub if it’s leaking, cracked, cloudy or pitted, or if its seal is cracked or torn. Remove white powder deposits with 1 part vinegar to 9 parts water, then rinse.
- Replace air tubing with holes, tears or cracks.
- Discard and replace any component with visible deterioration (cracking, discoloration, tears).
ResMed lists a design life of 6 months for the standard humidifier tub and the air tubing, and 2.5 years for the cleanable tub (ResMed AirSense 11 user guide). For replacement intervals and prices, see the CPAP supplies replacement schedule.
What not to do
- Don’t put the machine in water. The FDA says not to put any machine with an electrical cord into water or other liquids. Wipe the outside with a damp towel, or a dry cloth per ResMed.
- Don’t use harsh cleaners. ResMed warns that some cleaning products may damage the mask or leave harmful vapors that could be inhaled if not rinsed thoroughly (ResMed AirFit F20 user guide).
- Be cautious with ozone and UV “CPAP cleaners”. See below.
What the FDA says about ozone and UV cleaners
From the FDA consumer update:
- “There are currently no FDA cleared or approved devices for cleaning, disinfecting, or sanitizing CPAP machines.”
- The FDA has authorized one device for add-on bacterial reduction of specific CPAP masks and hoses, to be used after regular cleaning, not instead of it. The FDA names it as SoClean3+ (FDA SoClean communication).
- “Both UV light and ozone can break down CPAP accessories like hoses and masks.”
- The FDA has received reports of unexpected asthma attacks, headaches and breathlessness after people used ozone devices. Ozone levels inside CPAP equipment can be above safe limits even several hours after cleaning.
If you own a recalled Philips device, the FDA specifically says not to use ozone or UV light cleaners on it (Philips recall guide).
Verdict
Use soap and water and follow your manuals: wipe the tub daily and refill it with the right water, clean the mask daily, and wash the tubing, tub and headgear weekly. Replace filters and worn parts on schedule. You don’t need an ozone or UV cleaner. The FDA hasn’t cleared any device to clean CPAP machines, and ozone and UV can damage your equipment.