We,re friendly lot around here but when comes to what water to put in our water tank, the friendliness goes out of the window
The distilled water sold in local supermarkets say on the label, "not suitable for medical devices"
I use tap water, boiled and cooled, also use it in the sinus rinse bottle (slightly warmed in the micro wave), safe to use according to FDA
From U.S. Food and Drug Administration http://www.fda.gov/ForConsumers/Consumer...316375.htm
Questions and Answers
What types of water are safe to use in nasal rinsing devices?
* Distilled or sterile water, which you can buy in stores. The label will state “distilled” or “sterile.”
* Boiled and cooled tap water
—boiled for 3-5 minutes, then cooled until it is lukewarm. Previously boiled water can be stored in a clean, closed container for use within 24 hours.
Okay, lets put some facts on the table and see what manufacturers say about this hot topic
From Fisher and Paykel http://www.fphcare.com/sleep-apnea/educa...t/faqs/#ns
Do I need to use distilled water in the chamber?
It is strongly recommended that you use distilled water in the chamber as it is free of minerals and will prolong the life of the chamber.
Using distilled water will also prevent mineral build-up on the inside of the chamber which can make it appear dirty
. Distilled water is pure and therefore the most suitable to use. However, the use of normal tap water will not harm you but may cause the chamber to deterioate at a rate faster than expected
Can germs pass from the humidifier to me?
No, using a heated humidifier in line with your CPAP device will not cause you to become sick or give you germs.
From ResMed http://www.resmed.com/au/service_and_sup...c=patients
If I run out of distilled water, is it okay to use tap water to fill my water tub?
This depends on the type of humidifier. If you have a standard humidifier tub, it is recommended that you use distilled or deionised water.
If you have a cleanable tub, then tap water is perfectly fine for everyday use
[Please note, ResMed has changed the design of the standard water tub, now comes in two parts and can opened for cleaning
The main difference is that the cleanable tub comes in three parts with stainless steel bottom while the standard tub is aluminum bottom]