"Portable Air Cooler, Purifier and Humidifier creates cool personal microclimate using natural evaporative technology 3-in-1: cools, humidifies the air, cleans the air from the dust particles making it healthy evaporative cartridge is made from mineral fibers that prevent any bacteria or mold from growing inside emulates a similar natural air cooling process unlike most air conditioners that simply create a strong flow of cold dry air that may lead to catching a cold captures large particles of dust from the airflow making it easier for you to breathe thus improving your productivity, moistened air is good for your health, skin and hair doesn't need freon or any other toxic coolant, the internal workings are composed of water and paper-thin evaporative materials, these materials are easily recyclable and don't deal any harm to the environment water tank capacity 750 ml water refill cycle 6-8 hours, cooling power up to 350-Watt (1200 BTU/hour) cooling area up to 45 sq. ft. Works with various Smart Home assistants like Amazon Alexa Mobile app to manage all the features of all your evaSMART devices remotely"