I purchased and used this during the scorching summer of 2023, but haven't used it much since it hasn't been that hot. It shows some signs of use, but it works without any problems. There's a little water scale in the tank. There is no instruction manual. Please refer to this URL for product details: https://amzn.asia/d/1MalEpM \\ For Heat対策 in Summer // Cooling Fan, Desktop Cooler, Portable Air Conditioner [2023 Latest Design, Powerful, Popular Version] Cooling Fan, Heatstroke and Heat対策, Cooling Fan [1500ml Large Capacity Water Tank] [Spray Volume Up 5x] [Cooling UP] Lightweight, Humidifying, Air Purifying, Medium-sized Cooler, Timer Function, 3-Stage Wind Speed Adjustment, 2-Stage Spray, Up and Down Angle Adjustment, Mini Cooler, Ice Cube Compatible, Energy Saving, Mini Cooling Fan [Japanese Instruction Manual] Timer Function, Night Light Mode (White)