The air we breathe can become a frequent carrier of pollution, as it contains huge amounts of particles, some of which are particularly harmful to the respiratory system. If our respiratory tracts did not have mechanisms to remove and neutralise them, the nose, throat, bronchi, and lungs would be invaded and become easy victims.

Certain nutritional supplements, officinal plants, minerals, vitamins, and probiotics can be used to prevent colds and protect the respiratory tract from external aggression.