A machinery-room refrigerant alarm activates. What is the proper immediate action?
- AEnter by smell
- Evacuate and follow the approved emergency response
- CIgnore it if refrigerant is nonflammable
- DUse oxygen to ventilate
Why B is correct
Refrigerant can displace oxygen or create toxic, cardiac, frost, or flammability hazards. Unprotected investigation can incapacitate the responder.