Refrigerants in the A2L class are considered “mildly flammable” but no more dangerous than many other household products. An A2L refrigerant is safe when handled properly and when best practices and safety guidelines are applied. As part of the HVAC industry transition, Low Global Warming Potential (GWP) systems, which utilize A2L refrigerants, require sensors and safety protocol in the event of a leak. Allied Air products have additional safety features such as a Refrigerant Detection System that will reduce its concentration in the event of a leak occurring.