Hygrometer for dew point measure (water content) Carbon monoxyde and carbon dioxyde Nitrogen oxydes (NOx) Sulfur dioxyde (SO2) Oxygene (O2) Depending on the configuration of our medical air station, we supply simple or double air treatment systems. On double systems, both air treatment systems are mounted on a common metallic frame to facilitate the installation on site. Our technical department is available to help you identify the configuration and type of air treatment system that best suits your healthcare facility.