The appearance of small droplets of water in the oxygen tube may be caused by improper human operation, or it may be caused by normal condensation phenomenon. Oxygen delivery tube appear small water droplets may be too much water with the humidification cup or placed too high position related, can be adjusted to improve the phenomenon. Secondly, it may also be due to humid weather, high temperature or significant temperature difference, resulting in the formation of water vapor condensation, especially when the atomization needs to atomize the liquid into a gas, which can cause small water droplets of condensation. After use, water droplets need to be discharged in a timely manner, such as hanging up the oxygen delivery tube, so that the water droplets flow out naturally. After that, it can be reused if it is kept in a cool place away from light, but it is recommended to replace it in time if it is accidentally contaminated or if there are too many water droplets left in the oxygen tubing.