Centaurus, as Old Akro has already mentioned there are some Civilian Hypoxia courses available, my company has one that we use for all new staff as we operate at high altitude on Oxygen and it's extremely valuable. Would be great I'd think if some of the schools out there employed these companies to come in a couple of times a year and show people the effects.
I don't think the masks they use are as accurate as a Decompression Chamber but well worth the time and money me thinks!