I'm an industrial design student and I've been tasked with redesigning an oxygen mask for mountaineering, I would really appreciate it if anyone that has experience using oxygen masks while climbing could take my survey! Your insight is incredibly valuable and would help so much! Thank you! Here is the link, its completely anonymous and you don't have to sign up to take it or anything: http://www.instant.ly/s/b1XXS Thanks again!

Looking forward to your redesign.