Quest Joint Airlock

Quest was designed to host spacewalks with both Extravehicular Mobility Unit (EMU) spacesuits and Orlan space suits.

[citation needed] The arrival of Pirs docking compartment on September 16, 2001, provided another airlock from which Orlan spacewalks can be conducted.

[6] Four hours into the Expedition 13 crew's sleep period, an error tone prompted mission controllers to cut short the activity, but the test was still deemed a success.

[6][7][8] The previous method of preparing for spacewalks involved breathing pure oxygen for several hours prior to an EVA to purge the body of nitrogen.

[11]) provide a replenishable source of gas to the atmosphere control and supply system and 900 psi (6.2 MPa) oxygen for recharging the space suits (EMUs).

[12] After the retirement of the Space Shuttle fleet, the Nitrogen Oxygen Recharge System (NORS) and spacecraft from the Commercial Crew Development program will take over this task.

[needs update] This module was manufactured by Boeing, under contract by NASA, at the Marshall Space Flight Center[11] in 2000.

James F. Reilly during preparation for the first space walk utilizing the Quest Airlock in July 2001
Reisman inside Quest
Christina Koch exits the Quest airlock
Quest airlock at the Marshall Space Flight Center