goose wrote:I think I'll enjoy not having to fill the HH every night anymore -- the tank on the HC150 looks very much larger!!!
Yep, it
has a lot more capacity than your M humidifier's water chamber.
From one of my old posts
viewtopic.php?p=206305
comparing the amount of water several different humidifier chambers can hold:
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I just now measured the water capacity of three water chambers, filling each just to their "fill line":
Respironics
M series humidifier -
11 ounces
I wouldn't try to overfill this one at all.
Respironics
non-M (classic) humidifier -
14 ounces
Can be overfilled another two ounces without problem - to 16 ounces.
Fisher & Paykel HC 150 separate humidifier -
16 ounces
Can be overfilled one more ounce without problem - to 17 ounces.
Those "overfill" numbers I'm using are from my own experience using cpap
pressures in the range of 8 - 16 cm. If a person is using more cpap pressure than 16, you probably wouldn't want to overfill a humidifier chamber much, if any. The greater force of air hitting the water is going to cause more turbulence on the surface of the water.
You know you've overfilled a humidifier tank if you hear splashing, spitting, or gurgling sounds when you turn on the air. Need to pour a little out and not fill it that much next time. Been there, done that!
When I use an M series machine, I never use the integrated humidifier for it. I always use my good old F&P HC150 humidifier connected to the M machine. Holds a LOT more water than the M humidifier.
Such a handy humidifier to have, that F&P HC150. Can be used with
any brand/model machine.