Um, maintain? I've had mine (3 of them actually, I've worn out 2) but other than changing a filter (once in 15 years?) I've never done maintenance. What do you maintain?
I know the manual says to wash it every day, but come on... why?
I was given a form that says:
1. replace the mask every 3 months (I have a spare new one, but still using the original after 6 months)
2. replace the cushion or pillows 2 times a month (I replaced mine after 3 months)
3. replace headgear and/or chin strap every 6 months (it's been 6 months and I have a new one on order; don't know when I might use it)
4. replace the tubing every 6 months (I have a spare new one; don't know when it might be needed)
5. replace the disposable filter 2 times a month (I replaced one after 3 months and have more on hand)
6. replace the non-disposable filter every 6 months (I have 2; wash one and swap them out about every 3 months; see no need to replace either of them)
7. replace the water chamber every 6 months (I have a new one on order; don't know when it night be needed)
And in between replacing, there's instructions to hand wash some of the items, occasionally wash some in the dishwasher, soak some in vinegar and water, then wash, etc., etc. Now this came from the folks who sell this stuff, so I think we can take it with a grain of salt.
In reality, I disconnect the tubing from the humidifier, remove the gel cushion and flap from the face mask and wash them in warm soapy water, drain, and dry them each morning. Then I put them back on the mask and hang the mask from a hook I made in the closet so the tubing is hanging straight down, not quite touching the floor. I remove the water chamber from the humidifier, dump any water remaining and turn it upside down on a paper towel to dry. Later in the day sometime, I refill it with distilled water and put it back in the humidifier.
So I wouldn't say it's a lot of maintenance and I can do most of it while the Keurig is making my first or second cup of coffee in the morning.
Oops, I forgot, I've separated the device from the humidifier and wiped both down with a damp cloth twice in the last 6 months.