"Personal Air Cooler: Mini personal air cooler designed for individual use. It does not use refrigeration or chemicals to cool the air, so you should not expect the same results as an air conditioner. It allows you to keep your create your own personal comfort zone. Portable and easy to use: 17 cm high, 380 ml, portable and compact, perfect for use in your kitchen, office, dorm room, on your desk and next to your pets, ideal for travel and camping. Multi-function: Personal Fridge Cooler, USB Fan, Humidifier, Air Purifier 4 in 1. Cool, humidify and purify for better air, protect you from dry air, enjoy your refreshing Summer. Energy saving: suck in the hot air and pass through a wet filter, then the cold wind comes out the other side.The built-in water tank (380ml) can blow cold wind for 2 hours. Freon-free, energy-efficient and environmentally friendly. Precautions: 1. When the water tank is full of water, please move it in parallel, do not tilt it in case of water leakage. 2. Do not put the product diagonally, but put it on its side or upside down to prevent water from entering the circuit board. 3. For the first time, please pour water and leave for 20 minutes. For best results, the drying curtain is filled with water only. 4. This fan is suitable for one person, not many people. Size: 15.2 x 15.7 x 17 cm"