Personal Air Cooler Adjustable Mobile Air Conditioners Evaporative Fan Multifunction Air Cooler-Personal Air Cooler: Mini personal air cooler designed for individual use, it doesn't use refrigeration or chemicals to cool the air, so you shouldn't expect the same results as a air conditioner, allows you to create your own personal comfort zone. Portable and easy to use: 17cm tall, 380ml, portable and compact, perfect for use around 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, Air Humidifier, Air Purifier 4 in 1. Cools, humidifies and purifies for better air, protect you from dry air, enjoy your refreshing summer. Energy saving: take in the hot air and pass through a wet filter, then come out the cold wind on 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 filled with water, please move it in parallel, do not tilt it, in case of water leakage. 2. Do not lay the product diagonally, lay it on its side or upside down to prevent water from seeping into the circuit board. 3. for the first time, please fill in the water and let stand for 20 minutes. The dry curtain will only be filled with water for best results. 4. This cooling fan is suitable for one person, not for many people. Size: 15.2*15.7*17cm