By VICE News June 12, 2016 | 10:25 pm A 29-year-old man killed at least 50 people and wounded 53 others at an Orlando nightclub early Sunday morning in the worst mass shooting in US history. President Barack Obama said from the White House that the shooting was an act of terror and hate, and represented an attack on all Americans.
Expected Duration. Carbon monoxide gas leaves the body the same way it got in, through the lungs. In fresh air, it takes four to six hours for a victim of carbon monoxide poisoning to exhale about half of the inhaled carbon monoxide in their blood.
Carbon monoxide poisoning happens when you breathe too much carbon monoxide. Carbon monoxide is a gas produced by burning any type of fuel-gas,oil,kerosene,wood,or charcoal. What makes this gas so dangerous is that when you breathe it,it replaces the oxygen in your blood.