When you live in the desert, bone-dry air can lead to wild temperature swings, but the ultra-convenient 2-in-1 Evaporative Cooler with Heating keeps you comfortable no matter what the season. The evaporative cooler provides refreshing breezes in the summer, and the built-in heater keeps you toasty in the winter - all while adding some much-needed humidity to the air. Easy-glide casters and an integrated handle make it easy to position, while the removable water tank makes refills a snap. Efficient, eco-friendly technology lets you enjoy personal comfort anywhere you go - without breaking the bank on your electricity bill. Note: This unit is not an air conditioner and works best in dry and arid climates. For the best results, make sure your windows/doors are open to limit the rise in humidity and keep better air ventilation in the room. Results may vary depending on location and relative humidity.