The House Suction Irrigator 85mm 2x2.5fr is a specialized surgical instrument used in otologic procedures, combining both suction and irrigation functions. The 85mm length allows for adequate reach, while the 2x2.5fr designation refers to the size of the suction tube, indicating that it has a 2 French size for the outer diameter and 2.5 French size for the inner diameter, which makes it suitable for delicate and precise fluid removal or irrigation.