Several alternatives to R410a are emerging as viable options due to their lower global warming potential (GWP). R32 is one of the most common alternatives, featuring a GWP of 675, which is significantly lower than R410a. Another promising alternative is R454B, which boasts an even lower GWP of 466, making it one of the most environmentally friendly options available. R466A is also an option, particularly in applications where safety is a primary concern, as it is non-flammable and has a GWP of around 733. Additionally, natural refrigerants like CO2 (R744) and propane (R290) are being considered for their very low GWP, though they come with specific technical and safety challenges. These alternatives are part of the industry’s effort to comply with the r410a phase out and reduce the environmental impact of HVAC systems. Each alternative has its unique characteristics, so it’s essential to consult with an HVAC professional to determine the best fit for your needs.