My machine is a prisma Smart Max -https://homecare.loewensteinmedical.com/en/produkt/prisma-smart-plus-prisma-smart-max-2/

I keep humidity at level 2, otherwise I'll get dry nose and dry mouth.
I also have allergy problems, so I need humidity.

I ordered one of these to see if it helps, but given my short experiment I'm not very confident.

Seems like I'll probably have to buy a "universal" heated hose, as my device doesn't seem to have one for purchase.