This Haier air conditioner series uses R32 refrigerant and is available in inverter and non-inverter models (HSU-10VPC03, HSU-10LPB23, and HSU-10VQB22). Offered in 1HP, 1.5HP, and 2HP capacities, these AC units provide cooling solutions for different room sizes. The R32 refrigerant is more environmentally friendly compared to older refrigerants. The inverter models offer energy-saving operation, while the non-inverter models provide a cost-effective cooling solution. Models include HSU-10VPC03 (Inverter), HSU-10LPB23 (possibly non-inverter), and HSU-10VQB22 (possibly non-inverter).