The MH-3 Flowmeter is calibrated for use with the Oxymizer? cannula for flight up to 18,000 ft. The left (compressed) scale is calibrated for the Oxymizer? cannula and is limited to flight of 18,000 ft.and below. The right scale is calibrated for a standard cannula or facemask up to 25,000 ft. Note: This Flow Meter has the CPC style fitting, that works with the XCP Constant Flow Systems. |