You should avoid anything that is not pure and natural. ResMed recommends that you use only natural or pure products/solutions to clean your mask, as the residual vapours that are left behind from non-natural cleaners can be inhaled if not rinsed very thoroughly.
ResMed recommends that you avoid using the products and solutions that are listed below.
Don't use aromatic-based solutions, Eucalyptus oil, essential oils, scented oils
Don't use antibacterial soaps
Don't use detergents (even if they are mild or include some natural ingredients)
Don't use alcohol
Don't use soaps with citrus scents
Antibacterial soaps, among others, may damage your mask and cause cracks, which may lead to skin irritation and poor mask performance. Furthermore, do not iron the headgear as the material is heat-sensitive and will be damaged
As for the SoClean machine, I,m going to study the 'Marijuana thread' before saying anything