Can you use demineralized water instead of distilled water in your ResMed CPAP machine?

It's generally not recommended to use demineralized water in your ResMed CPAP machine instead of distilled water. While both types of water are purified, distilled water undergoes a thorough boiling and condensation process that ensures it is free from all minerals and impurities. Using demineralized water may still contain some contaminants that could potentially harm your CPAP device or affect its performance. Always refer to your CPAP manufacturer's guidelines for the best water type to use.