The root cause of ammonia poisoning is that after ammonia is inhaled by the body, it will cause irritation to the skin and mucous membrane system, and it is also corrosive, so it will cause tissue dissolution necrosis, when high concentration of nitrogen is inhaled, it can cause cardiac arrest or respiratory arrest due to the action of the trigeminal nervous system, it may also lead to an increase in the blood chlorine, which will affect the metabolism of the body and thus the ammonia poisoning situation. When ammonia enters the body, it needs to be metabolized by the liver to form urea, and excreted by the kidneys. Ammonia poisoning will cause damage to the liver, dizziness, headache and other symptoms, if the concentration of up to 500-700mg/m3 will directly affect the respiratory system, complications and sequelae of ammonia poisoning, when the concentration exceeds a certain level, there will be a rapid death.