LX-140 WITH 14,000 BTU AC AND 14,200 BTU HEATER. Yes I know its pricey at $419.89 but when you think what even a portable air-con is going to cost you, this all in one heater / air conditioner / fan and dehumidifier will cover all year round climate control for your grow room. One thing that really makes it stand out is its big capacity dehumidifier (60 pints).
The person should pass out in 6 - 20 seconds. Depending on the person, irreversable brain damage will begin somewhere around 4 to 6 minutes. At 7 minutes, the brain will be dead but the drowning person missed it all as they passed out at 6 - 20 seconds.
It's going to take maybe 4-6 minutes for a person to die during a hanging. I am going to go out on a limb a little bit and say that is true even if the head is ripped off. That is because if you cut off all the blood supply to the brain then it takes 4-6 minutes for it to die HOWEVER several things can happen.