I agree with you, my first thought was in any case do not abuse it, it is not advisable to take any unnecessary risk.
Because we are talking about wetting the hearing aid, let me ask you and ask this thread, and what if I want to use the hearing aid in the gym. For example, I usually run almost a mile on the treadmill in 12 minutes, that makes me sweat.
I remember that before my Tympanoplasty surgery I could never use headphones to listen to music, almost any sound was heard as an old speaker on AM radio, after my surgery I can now listen to music using headphones.
With this Unique 330 I plan to buy the com-dex, then I wonder, can I use my music APP on Android and my hearing aid as a headset?.