Inverter cooling and heating units are air-conditioning devices that integrate cooling and heating functions, and are favoured by consumers for their high energy efficiency, convenience and practicality. This kind of equipment usually adopts advanced compressor and heat exchanger technology, which can improve energy efficiency, reduce energy consumption and minimise energy waste during the cooling and heating process. In addition, users can control the temperature, wind speed, mode and other parameters of the air-conditioner via remote control or smartphone APP to achieve intelligent and automated air-conditioning control. The cooling and heating unit is also equipped with a high-efficiency filter and negative ion generator, which can remove indoor bacteria, viruses, dust mites and other harmful substances, providing a fresh, healthy indoor environment.