Toxic gas both exist in the production material, such as the many kinds of origanic chemicals (VOC), also maybe in the each of production process, such as the NH3, CO, H2S, etc. They will have bad effect on the working human, including the body discomfort, get sick, death, etc, and will have long-time harmness. So, these toxice gas should pay more attention.

Toxic gas detector used to detect the harmful gas concentration in many different applications, hospital,  including the petroleum, chemical, pharmaceutical, municipal, fire, gas, telecommunications, coal, metallurgy, electric power, food processing, laboratory research, etc.