Color: Wood, 4 in 1 function (can be use as a heater, HEPA plasma purifier, sterilization, & humidifier * Compact and lightweight design, Can be use thought out the year, Comes with 4 rolling caster makes it more portable * Unique combination, state of the art latest infrared heating technology, Highly effective HEPA + plasma air purification * Time tested PCO sterilizing technology and comfortable humidification feature, Time tested PCO sterilizing technology and comfortable humidification feature * Energy saving unit (Save money on electric bills), Keeping your room in a warm, clean and perfect humidity environment.