Nebulizing with saline can be done using warm water at 37 degrees. Saline around 37 degrees can be compatible with the body. However, it should not be heated, if the temperature is too high, when adding other nebulized drugs, it may damage the active ingredients of other drugs. The main function of warm saline nebulizer is to dissolve phlegm, some patients with respiratory diseases may not be able to cough up phlegm on their own, a large amount of phlegm accumulates in the lungs, which is not conducive to the recovery of the disease, and can easily lead to asphyxiation, thus endangering the life of the nebulizer to dissolve phlegm can help patients to expel phlegm, reduce lung infection, and improve the symptoms. Commonly used drugs with nebulized inhalation include salbutamol, terbutaline, and so on. The above drugs should be used under the guidance of a doctor, avoid self-medication.