Data center computer room Freon (refrigerant) gas alarm
# Data center computer room Freon (refrigerant) gas alarm > > Main scenarios in data centers: **chiller plant refrigeration 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 that leakage alarms automatically start **emergency exhaust fans**, and signals are connected to the BAS / environmental monitoring system.
