Thanks Finkles. are you talking about he hole in the water jug? not much can get through that, but I am looking into printing a cap w/ a 'straw' to ensure the hose gets to the bottom of the jug, rather than having a flexible hose in the jug. That would keep dust out.... Cleaning is critical on some...

I have owned my ResMed AirSense 10 since July 2020, that's almost 2 and a half years. It's my second, and by far the best CPAP machine I owned. Up until 2 or 3 weeks ago, It was practically silent. Now it makes for the lack of a better term, a whistling noise. It's constant but more pronounced with...