When I first started using a CPAP, I'd wash it daily until my sleep doc told me it was okay to only wash it weekly.
Currently, I wash my mask and humidifier reservoir every Sunday morning followed by a 15-minute soak in diluted white vinegar. The hose gets a wash and vinegar treatment about once a month, usually at the same time I change the filter.
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In 10 years I've never washed the hose. I replace the hose when I get a new CPAP. I replace the nasal pillows when I get around to it. When I use the humidifier I rinse it out when I add more tap water. I have washed the air filters but not on a regular basis. I'm the only one using this equipment, I don't see the need to waste too much time cleaning it. I do dust the outside of the machine on Saturdays when I dust everything on my night stand. I didn't vote because you didn't have never.
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