The transparent dome of the Ambu Silicone Face Mask enables you to check the patient’s condition, e.g. bleeding, vomit, spontaneous breathing and cyanosis. The transparent dome (sizes 6, 5, 4, 2 and 0) is made of unbreakable plastic (polysulphone). The texture of the surface of the Ambu Silicone Face Mask ensures that the cuff does not slip, and makes it comfortable to hold during use. The dome has been designed to allow a soft rest for the thumb, thus creating an easier grip and ensuring a tight fit on the face (sizes 6, 5, 4 and 2).