This is a portable evaporative air cooler with a 55-liter water tank. It functions as a fan and an air conditioner, using water evaporation to cool the surrounding air. The system is adjustable, offering customizable cooling levels. The included Chinese terms "冷風扇" and "冷風機" indicate that the target market includes Chinese speakers, and translate to "air cooler" and "air cooling machine" respectively. It is designed for easy portability and provides an energy-efficient alternative to traditional air conditioning.