USB Humidifier Module Set, Atomization Module, Easy to Assemble, DC 5V USB Spray Module, DIY Humidifier Control Board.DC 5V USB humidifier module set, ensures a high atomization rate and provides large volume humidification.The atomization disc is easy to assemble, it can be used on the water surface, absorbent sponges or wet towels, etc., providing fine and even spray.The atomization plate circuit board is made of premium PC material, stable performance, wear resistant, sturdy, and ensures a long time to use.The USB spray module is suitable for DIY experimental equipment, DIY atomization devices, humidifiers, aroma atomization devices, etc.You will get 1 atomization module and 4 atomization pads.USB Humidifier Module DC 5V High Performance. Atomization Disc USB Spray Module . Atomization Plate Circuit Board Professional. Atomization Module Adjustable Spray Modes. DIY Humidifier Control Board Easy to Assemble.