I have been using a CPAP machine since 2005. After the first night of feeling like I was about to drown, I decided NOT to use the water feature. I wear a "nose pillow mask" and simply remove the mask from the main hose and wash it under hot water and soap. Has not been an issue at all.
Regarding your husband laughing at how you look, I was mortified that my wife was going to think "how goofy and unromantic!". So I shared my fears and she said "Honey... this is NOT a problem. I will simply refer to you as "My Snuffleupagus!" She added "And knowing you are breathing all night long without any snoring is Heaven!"
"Good luck!" getting him on boards and "Sweet Dreams!"