Installation: Tabletop / Portable Noise: Less than 36db Timing Function: No Mist Outlet Quantity: One/a Shape: Classic Columnar Power Type: USB Type: Ultrasonic Humidifier Humidification Method: Ultrasonic Classification: Humidification Application: 11-20 Square meter Model Number: Wood Grain Aromatherapy Operation Method: Keyboard Type Function: Ultrasonic Mist Output (gallon / day): 30ML/H Water-shortage Power-off Protection: Yes Use: USB Humidity Control: Press Type Humidifying Capacity: 250ml/h Power (W): 3W Voltage (V): DC5V/350MA Capacity: 130ML Product name: Replacement cotton sticks for Portable Personal USB Powered Humidifier Cotton sticks. Type:Humidifier Sponge Sticks Product weight: 10g/bag colour:white Material:cotton size:73 x 7mm Package Contents: 40 x Sponge Sticks Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Cotton Sponge Stick Humidifier Filter Stick Replacement Cotton Sponge Stick