The 3M Nose Cup Assembly 6894 is a replacement part for 3M Full Facepiece 6000 Series. It consists of a nose cup and inhalation valves. It is designed to install onto the centre port adapter of the 3M Full Facepiece Reusable Respirator 6000 Series and comfortably fit over the respirator wearer’s nose and mouth to aid in purging exhaled breath and prevent lens fogging.