1.3 IN 1 COOLING Evapolar evaCHILL uses evaporative technology to cool and humidify the air, and the filter material also captures large dust particles. Ultra-portable device with a convenient handle, 4 fan speeds and one-touch controls. 2. Energy efficient and cost saving - consumes 7.5 watts (100 times less than AC devices) and saves your bills. Can be used alone or in tandem with an air conditioner to reduce energy consumption and prevent air drying. 3. NATURAL PERSONAL COOLING - Cool breeze through 9-25F to effectively cool your personal space. The ideal solution for hot and dry climates. In contrast to personal air conditioners, evaCHILL does not use a freon-like liquid, the temperature drop is the result of the water evaporation process. 4. 100% safe breathing. The cartridges inside the device contain natural materials produced from basalt (rock formations). Contrary to cellulose, long lasting and hygienic long lasting without cleaning. *caution: