forgot to follow up in this
Had this mask for alil bit now....while it obviously doesn't reduce the oxygen it sure does make it hard to breath ! Il wear it doing random chores around the house on max resistance and find my self completely out of breath at times.....while exercising I use it on the min and middle settings...and still find my self gasping for air as if I was at high altitude
cons.....
it makes noise when you breath in and out....kind of annoying unless you wear head phones...in order to change resistance you have to completely change out the pucks...it would be nice if you could just twist them or something but the way they have it you get to keep track of the different pucks
Also people will get freaked out when your jogging passed them at night wearing this and a hoody....So avoid the potential pepper spray and jog away from the public
