distilled water?

[Weeboy1]

Can substitute with mineral water, spring water and osmosis filtered water. Distilled would be best but for the length of stay wouldn’t sweat it. I’ve even used without humidifier with no issue (humidity is pretty high here) the airway maintenance of the machine remains intact. Which is the main factor.
Don’t use auto part supplies.
As said bottled wata will be fine. Just over time may leave scale in 5he reservoir but at least the waters clean.