Powered by natural refrigerant R744, better known as refrigerant-grade CO2, Lync’s Aegis commercial heat pump is non-toxic, non-flammable, has an ODP (Ozone Depletion Potential) of zero and a low GWP (Global Warming Potential) of 1. R744 also outperforms other common refrigerants, like R134a and R410a, making Aegis a better, longer-lasting and more sustainable solution.