In order to create a unique feature in terms of valve design, the v-ionics valve is triangularly shaped and equipped with a semi-transparent housing to display the outstanding features and capabilities of v-ionics. The membrane’s leaf-like structure provides the product with maximum flexibility and stability. Thanks to this sophisticated structure, the membrane opens more easily than other commonplace valves, so the breathing resistance could be reduced and ventilation increased to maximize hygiene and wearer comfort. By using a semi-transparent housing, the possibility of separating several performance classes can be visualized by color.