First of all, you need to understand the negative effects of oxygen! Oxygen is an indispensable gas for human survival. Without oxygen, humans can asphyxiate in a few minutes. It is unknown that the damage to human beings should not be neglected when the oxygen content is too high. In addition, oxyg...

Chlorine is a toxic gas with a yellowish-green color and a strong irritating odor. It can cause sneezing, coughing, tearing, asphyxia and other symptoms. It mainly invades the human body through the respiratory tract and dissolves in the water contained in the mucosa, producing hypochlorite and hydr...