Delta Plus FFP3 Evolution folding disposable valved mask - pack 10 #M1305VNon woven synthetic fibre disposable single use masks. Manufactured with four foldable parts so will fit most face sizes and shapes. Nose clip for correct fitting, with a foam edge under clip for increased comfort. High performance exhalation valve to limit breathing resistance and increases wearers comfort allowing all day use. Supplied individually in a hygienic plastic bag to prevent box contamination. High performance exhalation valve Minimises