In by Jackie Dunn

An air compartment or chamber that connects one or more ducts and forms part of an air-distribution system for moving air under a slight positive pressure.

Merriam-Webster Online Dictionary
plenum (noun)
a) a space or all space every part of which is full of matter
b) an air-filled space in a structure , especially one that receives air from a blower for distribution (as in a ventilation system)
a general assembly of all members especially of a legislative body
the quality or state of being full
plenum (Wikipedia)

Plenum may refer to:

« Back to Glossary Index