This formulation is uniquely blended and proportioned so as to be of maximum benefit in acute and chronic conditions of lung congestion. The herbs have antispasmodic, antibacterial and regenerative qualities. Frees up mucous congestion and allows for increased expectoration, expanded breathing and Cleaning. Clean Lung Plus, with the addition of colloidal silver, has added stronger antibacterial properties. Very helpful for smokers, persons who, in their working environments, breath toxic substances and for those who live in congested urban areas or have chronic weak lung conditions. CleanLung is helpful for: Lung congestion, Asthma, Bronchitis, Wet and Dry Cough, Pleurisy, Chronic Phelgm, Respiratory Infection.