1byone 701NA-0013 Replacement Filters for Simple Taste 4L Ultrasonic Humidifier (Pack of 3), White;

Work with: SimpleTaste 4 Liters humidifier Do Not Work with SimpleTaste 3 Liters humidifier & 1byone 6 Liters humidifier It is highly recommended to replace the filter after approximately 500 hours' operation. How to replace a filter? 1>Unscrew old filter from water tank cap; 2>Unscrew the water valve from the old filter; 3>Screw the water valve onto the new filter; 4>Screw the new filter back into the water tank. Package Content: 3 X SimpleTaste Humidifier Filters