What does everyone thing about the altitude training mask? Is there actual benefits to it?

Jonathan,

Most of the research I've seen on Hypoxic training has mixed results. It might provides some benefits, but I haven't seen anything conclusive. Also, these were studies done in hypoxic rooms, and not just wearing the mask. I'm not convinced it's worth the money. 

P.S. This would be a great question for the Facebook group!