This is a cutaway example of the lower part of the personal life support system (PLSS) developed by Hamilton Standard and worn by astronauts on the Moon. The upper portion was the Oxygen Purge System. The PLSS was used for water and air circulation, communications, and oxygen "scrubbing". The components in this example are color-coded to show the interior components and how they worked and connected to each other.
Transferred to the National Air and Space Museum from NASA in 1974.
This object is on display in Destination Moon at the National Air and Space Museum in Washington, DC.