How Does Glacier Breeze Portable AC Work? The Glacier Breeze Portable AC operates using evaporative cooling technology. The process is straightforward: 1. Fill the water tank. 2. Insert the cooling filter if required. 3. Plug the device into a USB power source or wall outlet. 4. Turn it on. 5. Choose your preferred fan speed. The fan pulls warm surrounding air into the un... https://glacier-breeze.net/