Economic, Simple and effective.FFP2. Unique design and shape: limited number of references. Pre-formed shell: rigid half-mask: the mask shape is maintained throughout use, for increased comfort. Internal volume: facilitated communication, no pressure on the face for increased comfort. Inner layer, ultra-light and ultra-soft: soft and pleasant touch to the skin to avoid irritation and increase comfort, easy breathing for greater acceptance over time. Upper preformed section near the nasal outline: quick and easy adjustment, highly effective and safe, fits all faces. Moving nasal element: compatible with goggles, excellent field of vision. High-performance exhalation valve: low exhalation resistance, mask inside cooler for enhanced comfort and acceptance over time. Protected valve membrane on the front: minimal risk of damage and leakage for increased safety.NR = Non reusable - ,,D = tested using Dolomite