Cartridge, Lithium Hydroxide Canister, Lunar Module


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

The lithium hydroxide canister was designed as a replaceable filter for the lunar module environmental control system (ECS). The ECS provided cooling, water and breathable oxygen for the astronauts’ suits and cabin. To maintain a safe pure-oxygen environment, the canisters contained lithium hydroxide (LiOH) and charcoal and a debris trap. The LiOH within the canister absorbed carbon dioxide, the charcoal eliminated odors.

This unit was found in the collection and was presumably provided by the manufacturer or NASA along with additional Lunar Module artifacts.

Collection Item Long Description:

Inventory Number


Credit Line

Found in collection. Donor unknown at this time.


Country of Origin

United States of America


Cartridge, Lithium Hydroxide Canister, Lunar Module


Aluminum, Plastic, Synthetic Fabric, Nickel Plating, Adhesive, Steel, Unknown Materials


Overall: 28.6 × 18.7cm, 1.2kg (11 1/4 × 7 3/8 in., 2.6lb.)

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


EQUIPMENT-Breathing Devices