Humidifier mainly increases air humidity by adding clean water to make it evaporate in the air. In order to increase the effect, some people began to add traditional Chinese medicine to improve immunity. This is not right. A little common sense will know that Chinese medicine is to be tortured and taken. How can it work if it is added to a humidifier? It will only increase the burden on our respiratory system and cause respiratory diseases. This is not worth the loss. If you want to improve your immunity, you must improve your diet and strengthen your exercise.