CHFather, yes I got that kit. Still use the mask sometimes. I just do better without it when I'm highly agitated, and that was something I really struggled with when I started 02. I think when us new CH start out and some treatment doesn't show immediate results, whe might want to call BS before we really take time to let it work. One thing I have learned is there are no "magic bullets" you need patience and a lot of tools in your toolbox.