Is there a larger capacity humidifier chamber?

[Deborah K.]

I live in Colorado where it is dry. I rarely have water left in my tank by morning. I also run a room humidifier, but still I run out.

[Jarhead 1964]

I have (2) ResMed AutoSense 10 AutoSet CPAP machines

One the VA provided to me in November Serial # 232126***** made in Jul 2021

One I bought on Facebook Marketplace with 0 hours for $200.00 Serial # 232019***** made in May 2020

Both units have different water chambers:

The VA provided machine has this tank: on the left is part number 37299

The Facebook purchased machine has this tank: on the right is part number 37479

The tank on the left (37299) generally uses 1/2 the water in 8 hours

The tank on the right (37478) generally uses all the water in 8 hours

On the box (37478) from the VA it says cleanable

On a website (37478) states that the tank on the right is dishwater safe

As you can see the tank on the right has a larger metal surface contacting the heating source, so therefore I assume that is why it uses more water

I hope this can help someone with a RresMed 10 that is using all the water!!!