Mitsubishi has introduced a new range of split and window air conditioners, which are being promoted both online and offline. First, the advertisement on the tram body was distributed throughout Hong Kong Island's heartlands. Four primary benefits are emphasized: inverter, WIFI wireless remote control^, thin body for simple installation, and UV-C ultraviolet light that inactivates bacteria*. In order to raise public awareness, event presents were delivered at numerous train stops and product display locations. Some functions are only applicable to specific models *UV-C ultraviolet light inactivates bacteria: Split Type Air Conditioner: Tested and certified by Guangdong Detection Center of Microbiology (2020), report number 2020FM33290R01. Window Type Air Conditioner: Tested and certified by Intertek (2022), report number 220520025GZU-001, test method: Technical Standard For Disinfection. ^WIFI wireless network control function: only suitable for SRK25/35/53MWKH1 split type air-con models; only suitable for WRK20/26/35MEC1 window type air-con models.