The green, 3-ply surgical mask is available in different designs and has a filtration efficiency of = 98 %. Its differential pressure is very low. The hypoallergenic mouth and nose protector complies with standard DIN EN 14683, EU class II/ R. The masks are equiped with a worked-in nose bow which can be matched to the dorsum of the nose. Edges and inner non-woven of the surgical masks are extra soft. The masks are free from glass fibre and latex. One dispenser box contains 50 NOBA® surgical masks.