Data center computer room Freon (refrigerant) gas alarm
# Data Center Computer Room Freon (Refrigerant) Gas Alarm > > Main scenarios in data centers: **chiller plant rooms, precision air conditioning rooms**, refrigerants are mostly **R134a, R410A**, refrigerants are heavier than air, leak and sink, the main risk is **suffocation and oxygen deficiency**, not poisoning; regulations require leak alarms to automatically start **emergency exhaust fans**, with signals connected to BAS / environmental monitoring systems. > If refrigerant pipes are laid in server rooms, detection points are also required.
