Since ancient times, rock salt has been used to ease the symptoms of respiratory ailments such as asthma, allergies, bronchitis, sinusitis and other respiratory discomforts. Salt mine and salt chamber therapy (also known as Halo Therapy) has been popular in Europe for many years. The Bronchial DSI Inhaler uses selected therapeutic grade minerals, in natural form, that are harvested from the famous Transylvanian Praid salt mines in Romania. This miraculous salt is sealed in a medical grade plastic casing that contains a one way safety valve and trains the user to breathe correctly in order to provide the maximum therapeutic benefit. The unique combination of salts (Sodium Chloride, Magnesium and Calcium in different natural forms) helps to alleviate chest congestion, allergy discomforts and other symptoms which may be associated with certain lower respiratory conditions.