The fixed WINDOW air cooler you described is a device that can be used to cool down a workspace or a specific area of a shed. It has a power rating of 460 W, which means that it consumes 460 watts of electricity when it is operating.
The device also has a water consumption rate of 10-12 liters per hour, which means that it uses that much water to cool down the air. This water is usually stored in a tank or reservoir, and the device uses it to moisten the air as it passes through the cooler.
The noise level of the device is less than 63 dB, which is relatively quiet compared to other cooling devices. This means that it can be used in areas where noise levels need to be kept low, such as in an office or bedroom.