Nasal ultratonic decongestant jet 3.1% NaCl, for children from 10 years of age and adults. From 100% natural seawater of high purity, from the coast of French Brittany, rich in mineral salts and trace elements, which naturally treats intense and long-lasting nasal congestion and purulent viscous secretions. It offers a reduction of edema in the nasal cavity and clogged sinuses, fluidizes mucus and facilitates breathing. At the same time, preventing dryness of the nasal mucous membranes offers protection against inflammations and infections. Continuous spray to remove excess mucus, microbes and allergens.