Fortia Surgical Mask IIR Black 50 pcs. are resistant to splashes, such as blood or other biological liquids. It is a medical device that limits the spread of contagion. Type IIR, they are flat/rectangular shaped filtering face masks with pleats. Manufactured in T.N.T. Latex free. 3 layers (1 paper / 1 filter / 1 TNT). High filtration power, 99%. Filter thickness = 10 microns. Breathing resistance = 23 pa Size 9 x 17,5 cm. Manufactured to minimize risk of contamination. Aluminum strips for adaptation to the nose. Adaptable by means of rubber bands. Made in Spain. Black color. Not reusable. Contains 50 pcs.