Some models have additional user-friendly features like continuous drain hookups and built-in Wi-Fi, while others stand out more for their power and reliability. We tested several models from trusted brands like Honeywell, Costway, and GE to help you find the best dehumidifier for your needs. The temperature of the room also plays a factor—since warm air holds more moisture than cool air, dehumidifiers work faster and better in warm air. Continuous Drain Versus Manual Most dehumidifiers come with an attached tank that stores the collected moisture from your device. However, unless you have the option of a nearby water drain in the floor, you may need a pump to push water to a sink or out a window.