Chest Pack Ventilation Control Module, White, Gemini IV


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:

This chest pack ventilation control module was designed to be used by astronaut Edward White during the Gemini IV mission.

The chest pack was the central component of the Extra-vehicular Life Support System (ELSS). It supplied oxygen from the spacecraft umbilical or from the backpack at normal rates of 5.1 or 7.8 lbs per hour. This supply was mixed with the secondary ventilation gas, and was then supplied to the suit for cooling and CO2 wash-out.

NASA transferred this to the museum after the end of the Gemini program.

Collection Item Long Description:


Chest Pack Ventilation Control Module

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


  • Fiberglass, Aluminum, Steel, Synthetic fabric, Velcro, Paint, Plastic, Glass, Adhesive
  • Case: Steel, Velcro
  • Connestors: Nylon-covered hose with aluminium fittings
  • Switches and other fittings: Aluminium


Overall: 34.3cm × 26cm × 9.5cm, 3.6kg (1 ft. 1.5 in. × 10.3 in. × 3.8 in., 8lb.)

Country of Origin

United States of America



Inventory Number