Assembly in Action: Dispensing System Plays Role in Space Modules
KERMIt was developed by NASA for several important reasons: it helps to speed repairs, which are often limited by time constraints; it provides accessibility to damaged module areas; it is ideal for repairing collateral damage; and it is compatible with extra vehicular activity (EVA) suits.
Punctures can cause a module's pressure to drop rapidly, giving the crew little time to diagnose the damage, get a repair kit to the problem and patch the leak. Minimal internal accessibility to leak locations usually re-quires the crew to make external repairs. Moreover, outside the mod-ule, more room is available for repair operations.