In a humid environment, high humidity in the air not only makes people feel uncomfortable, but can also be a trigger for respiratory diseases such as rhinitis. High humidity environments are prone to harbor microorganisms such as bacteria, molds and dust mites, and the reproduction and dispersal of these microorganisms can increase the concentration of allergens, thus triggering or aggravating the symptoms of rhinitis, such as nasal congestion, runny nose, sneezing, and itchy nose.