FANDOM


The N-4 filter was a filter used in air filtration systems aboard Starfleet vessels.

In 2268, Commander Montgomery Scott had work crews install these filters aboard the Gezary as part of an effort to clean up that ship. (TOS novel: Sanctuary)

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.