Hemi Joel wrote:
I have used nothing but tap water in my cpap humidifier for 5 years with no problems. I use the highest setting, so it goes through a full tank of water in 10 hours. If any minerals start to accumulate, it is a 20 second process to wipe it off. Distilled water is an unnecessary inconvenience.
Quoting my own post here and revising my opinion. I got some nasty water down in Florida in February that left a nasty, scummy residue in the CPAP tank. So now I can see why people use distilled water, if they have water like that. I still use tap water water without issue, once I drained out that water and got a refill. But I now carry a jug of distilled just in case.