ChillWell manufacturers refer to it as "HydroChill Technology." As per our high-quality products disclaimer, clicking the links may earn us a commission that goes towards supporting our research and editorial team, and please help us present valuable information. The higher the fan's mode, the greater the impact. Plug in the USB end. One exception is when you plan to set up your portable AC near a furnace, a hot water heater or any other device that uses combustion. The LCD display is not dimmable at night and there are no smart features. But, this AC will run for hours, so you can use it overnight and all throughout the day without refilling it. It has rough, scuffed casters which felt cheaply manufactured to us but works well enough. The majority consumers gave this product a good rating, and the customer reviews are also positive. It has flimsy buttons and does not have cord storage. The box would contain a Chillwell AC filter.