“Before using or handling any refrigerant, personnel should be familiar with safety concerns for the specific product with which they are working.”

RSES, Safety First When Working With Refrigerants

globalFACT is dedicated to providing education around the safe and responsible use of refrigerants. Safety and environmental stewardship are our top priorities. Next-generation technology introduces new safety considerations, and we are striving to prepare the entire industry – including contractors, equipment designers, and end-users – for the safe use of these solutions.

In addition to standard safety concerns, there are two additional important components of refrigerant safety to consider:

  • Toxicity
  • Flammability

ASHRAE Standard 34 (Designation of Safety Classification for Refrigerants) safety classifications exist to identify a refrigerants level of toxicity and flammability. Toxicity is categorized by a capital letter (e.g., “A”), and the flammability is categorized by a number (e.g., “1”). Combining the two gives you a refrigerant “safety classification” (e.g., “A1”). The safety classifications are:

  • A1: Lower Toxicity, No Flame Propagation
  • A2L: Lower Toxicity, Lower Flammability
  • A2: Lower Toxicity, Flammable
  • A3: Lower Toxicity, Higher Flammability
  • B2L: Higher Toxicity, Lower Flammability

Understanding these classifications and how to handle the refrigerants they describe is key to safety.

Learn more about toxicity here and flammability here.