Gaseous Samplers are devices designed to collect and analyze samples of gases from the air or specific gas sources. The choice of gaseous sampler depends on the type of gases to be sampled, the specific application, and the desired level of accuracy. They are commonly used for collecting whole air samples, and the collected sample can be later analyzed using various methods. These samplers are used in various applications, including environmental monitoring, industrial hygiene, safety assessments, and research. Gaseous Samplers are designed to measure mercury vapor concentrations, commonly used in industrial settings and environmental monitoring.