Is it safe to inhale helium?
It can kill. On 3rd June 2 students died in a giant helium balloon. Breathing in pure helium washes out oxygen , in other words, each breath of helium you take sucks more oxygen out of your system. You dont have to worry too much about fatal asphixiation if your sucking it from a balloon, at worst you will get light headed and then pass out, at which point you will stop breathing helium and your body’s oxygen levels will return to normal. But then again, you may pass out, fall over, hit your head and kill yourself.
