EvaPolar's Opaque White evaSMART is an intelligent personal evaporative air cooler with smart home and mobile app control, removable water tank, and full-spectrum LED light. Engineered as a 3-in-1 cooling device, it cools, purifies, and humidifies the air. It has a sleek minimalist design, sophisticated functionality, and powerful cooling. evaSMART is fully compatible with Amazon Alexa and Google Home and can be remotely controlled via mobile app, making it ideal for taking care of your pets and kids while you're away. Created to cool down the personal area only in front of you, the evaSMART air cooler won't waste tons of energy trying to cool the whole room. Powered by unique evaBREEZE technology, the air cooler can decrease outcoming air temperature up to 44. 6°F to 50°F, depending on the humidity level. This portable and USB-powered smart air cooler is ideal for sleeping, resting, and working in the office and from home. Created as a whisper-quiet personal cooling solution, it is a must-have device for hot sleepers and creates your personal micro-climate wherever you are. Just add water, connect the device to power (an electricity source—a socket, a power bank, a laptop, etc. ), and enjoy the fresh air. You can control the airflow and the LED lighting via the device's touchscreen, smart assistants, or the mobile app. Breathe pure and fresh air, thanks to the long-lasting biodegradable basalt fibers inside the cartridge. They filter out the dust in the air and retain water for more efficient cooling and humidifying. Smart technology works with Alexa and Google Home voice commands; also works with Evapolar app to keep kids and pets cool when no one is home. Working noise level: 25 dB to 40 dB. Covers up to 37 sq. ft. in direction of airflow; 55. 1 CFM flow rate. Sleek, minimalist design with sophisticated functionality; smart control wheel, sleep timer, and full-spectrum LED lighting. Natural personal cooling; efficiently cools personal space using evaporative technology; ideal for hot, dry climates; unlike personal air conditioners, doesn't use Freon-like liquids. Opaque White. 100% safe for breathing; cartridge inside made from long-lasting, biodegradable basalt fibers that filter out dust and retain water for more efficient cooling and humidifying; suggested replacement interval is 4 to 6 months. 3-in-1 cooling; cool, humidifies, and purifies air using evaporative technology; enhanced leakproof system. Energy efficient and cost saver: consumes 12 watts (up to 100x less than AC unit) to save on utility bill. Includes replaceable cartridge, power cord, power adapter, and guide. Removable water tank holds 44 oz. (1,300 mL)