As a sterile single-use product, the Ambu Laryngeal Mask features a special curve that carefully replicates natural human anatomy. This curve is molded directly into the tube so that insertion is easy, without abrading the upper airway. Moreover the curve ensures the patient's head remains in a natural position when the mask is in use. The Ambu mask features an extra-soft 0.4 mm cuff. Thus, the seal more readily conforms to the shape of the airway with significantly less internal pressure. The cuff, mask and airway tube are molded in a single unit.