Washing a CPAP hose takes about five minutes and requires nothing more than warm water and mild soap. A quick daily rinse and a deeper weekly clean will keep bacteria, mold, and mineral deposits from building up inside the tubing, which protects both your lungs and the lifespan of your equipment.
Daily Rinse
Each morning after you finish using your CPAP, disconnect the hose from the machine and the humidifier (if you use one). Run warm water through the full length of the tube to flush out moisture and any condensation that collected overnight. Swirl the water back and forth a few times, then hang the hose over a shower rod or towel rack and let it air dry during the day. That’s it for your daily routine.
Weekly Deep Clean
Once a week, give the hose a proper wash. Fill a sink or basin with warm water and add a small amount of mild, fragrance-free liquid soap. Dove, Ivory, and baby shampoo all work well. Submerge the hose completely, letting soapy water fill the inside. Gently swish it around for a minute or two, then lift and lower the tubing so water runs through the full length several times. Drain the sink, rinse the hose thoroughly with clean water until no soap residue remains, and set it out to dry.
Soap residue left inside the tube can create a film you’ll taste during use, so the rinse step matters. Run fresh water through at least two or three times to be safe.
Disinfecting With Vinegar
If you want a deeper disinfection beyond soap and water, a white vinegar soak once a week works well. Mix 2 parts white vinegar with 3 parts water (roughly 1 cup of vinegar to 1½ cups of water). Submerge the hose in this solution and let it soak for 30 minutes. After soaking, rinse the tubing thoroughly with warm water to remove the vinegar smell, then hang it to dry completely before your next use.
Vinegar is a mild natural disinfectant that helps break down mineral buildup, especially if you use a heated humidifier that introduces moisture into the system nightly.
What Not to Use
Stick to gentle, unscented soaps. Avoid antibacterial soaps, bleach, rubbing alcohol, baby wipes, disinfectant wipes, essential oils, and any abrasive cleaner. These chemicals can degrade the silicone or plastic of the tubing over time, and residue from harsh cleaners can irritate your airways when the machine pushes air through the hose all night. Even small amounts of bleach or alcohol left behind in a tube you’re breathing through for hours is a risk not worth taking.
Drying the Hose Properly
Moisture trapped inside a CPAP hose is where mold and bacteria thrive, so drying is just as important as washing. Lay the tubing flat on a clean towel or drape it over a shower rod so both ends hang down and air circulates through. Avoid placing it in direct sunlight, which can break down the tubing material over time. Most hoses dry fully within a few hours at room temperature.
If you wash your hose in the morning, it should be completely dry well before bedtime. Some people keep a second hose on hand to rotate, but this isn’t necessary as long as you wash early enough in the day.
Heated Hoses
If your CPAP uses a heated hose (one with a built-in heating element to reduce condensation), the cleaning process is the same with one important precaution: keep the electrical connector dry. Disconnect the hose from the machine before washing, and make sure the connector end stays out of the water or is thoroughly dried before you plug it back in. The tubing itself can be washed and soaked the same way as a standard hose.
Ozone and UV Cleaners
You may have seen devices marketed as CPAP cleaners that use ozone gas or UV light to sanitize equipment. The FDA has not cleared or approved any ozone gas products for cleaning CPAP devices and has warned consumers about potential health risks from residual ozone, which can irritate the lungs. Most CPAP manufacturers, including ResMed, recommend simple soap and water as the primary cleaning method. A device that costs $200 or more isn’t doing anything a sink full of warm soapy water can’t accomplish.
Replacement Schedule
Even with regular cleaning, CPAP hoses don’t last forever. Most manufacturers recommend replacing standard tubing every three months. Over time, the interior surface develops micro-scratches and buildup that cleaning can’t fully remove, and the tubing loses its flexibility. If you notice discoloration, a persistent smell after washing, or visible residue inside the hose, it’s time for a new one regardless of how long you’ve had it. Replacement hoses are relatively inexpensive and often covered by insurance as a supply item.