Our Herbal Spray Cleansing Lung contains inulin, monk fruit and Perilla seeds. It can repair damaged airways and lungs, remove phlegm and garbage that accumulates in the lungs, improve and cure respiratory allergies/asthma, prevent respiratory diseases, repair the after-effects of viral pneumonia, and let you breathe easily again. Its use method is very simple: shake well before spraying, remove the top transparent cover, spray the nozzle directly into the inlet, and spray 3-5 times at a time. Stimulates and dilutes mucus in the trachea and lungs, helps expel sputum and lung residue within 2 hours, and keeps the airways open.