Oil refineries, processing plants, pipelines, storage farms, LPG/LNG plants, and offshore platforms all
utilize or produce a wide range of hazardous combustible and toxic gases. In addition, the processes
involved in each can produce nontoxic gases which when accumulated in high concentrations, depletes oxygen causing a hazardous condition to personnel who occupy the area without proper protection. Where hazardous conditions are the greatest, it is essential to have a monitoring system that constantly monitor a facility’s conditions even if personnel are not present.