I use this everyday and don't clean my mask out with dish soap anymore(or very rarely). It had a little smell in the beginning but now its fine. I would recommend this over an Ozone cleaner.
After my last unit died, ordered a new one & used it today & WOWZA!!! Zero lower back pain after one session. Much stronger than my last unit & comes in a cute carrying case. Love it!
I purchased this unit for my husband who wrenched his back 3 wks ago and it has helped him tolerate the pain. Would highly recommend for anyone nedding pain relief without opiods.