For these issues, here are the reasons and resolutions below:
1. Foreign objects in the water tank are caused by the high-speed rotation of the wind wheel, which will generate a small amount of suction at the air inlet, sucking the lighter objects around (such as paper scraps, small mosquitoes, wool, hair, etc.) into the humidifier, and eventually enter the water tank. This phenomenon is normal. Turn off the humidifier and then open the water tank to clean it;
2. After the humidifier has been used for a period of time, dust and other impurities in the environment will make the water turn yellow. You need to clean the water tank and refill it with water before use;
3. The yellowing of the filter is mainly caused by the combined effects of the ambient air and water quality. It is recommended that you clean the filter and water tank regularly to achieve the best use of the humidifier.