Why should we not use anti-bacterial cleaners? I use the Hybrid mask and this is my nightly ritual:
Dial anti-bacterial hand soap for one minute and triple rinse. Hand soap again and triple rinse. I chase that with Glass Cleaner w/ammonia and rinse for at least two minutes. I shave/rinse then wash with Dial/rinse.
I've done this for three months and have seen no discoloring and no problem with elasticity of the mask.
Mask always fits snugly to face with no leaks and no mask marks, as I don't need to have the headgear tight at all. I think probably because my mask and face are completly clean that everything works so well.
Am I doing somthing I shouldn't be doing - other than being anal?

