"Keep cool on hot summer days or warm on cold winter nights with the Smart Air Humi Portable 6.8"" Hot & Cool Desk Fan. It has 2 speeds and 2 heat settings, making it the ideal home office companion for all seasons. Its 4-in-1 climate control options are designed to suit your everyday needs. The Heat function gives you a warmer space to work in while Cool offers you a refreshing breeze. There are even Humidify and Hand Warm options - perfect for relieving the symptoms of cold and flu or keeping your hands warm while you work at your computer. The Humi Fan also turns itself off after 4 hours, giving you peace of mind."