Anti gravity water droplets humidifier capacity 500mls tabletop humidifier: large water tank usb humidifier, antigravity water droplet provides cleaner air, which can steadily and efficiently dispenses the for your space. low noise: our tabletop humidifier mist quiet working will not disturbing your study, working or sleeping, away from those noise. application: great for bedroom, car, , nursery, and office. creative anti gravity humidifier ultrasonic anti gravity air humidifier led night light anti-gravity water drop humidifier.