HSD - 50D Bottom Outlet Evaporative Air Cooler (50000 AirVolume)The evaporative air conditioner is an efficient cooling system that achieves air cooling through the principle of evaporative cooling. By utilizing the heat absorbing property of water evaporation, it transforms heat energy into a cooling effect, effectively lowering indoor temperatures. The HSD 50D features a bottom air outlet. For locations where equipment cannot be placed on the ground or roof, it can be mounted on windows using an iron frame. This