Bag, Hydrogen Gas Separators, Apollo 11


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:

During the production of water by the fuel cells, some hydrogen remains in solution and must be removed before the water is used for cooking and drinking. The water dispenser (which is stowed in the Left Hand Forward Equipment Bay) can be fitted with 6-inch long cylindrical hydrogen gas separators, which serve to remove the unwanted gases. The separators are provided a specially designed bag and were stowed in locker A1 of the Command Module at launch. This bag was flown on the Apollo 11 Command Module during its historic mission. It was transferred to the Smithsonian in 1970.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

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

Credit Line

Transferred from NASA


  • Beta Cloth
  • Synthetic Fabric
  • Paint
  • Aluminum
  • Ink


3-D: 19.1 x 24.1 x 2.5cm (7 1/2 x 9 1/2 x 1 in.)

Country of Origin

United States of America



Inventory Number