What is another word for plenum space?
Pronunciation: [plˈɛnəm spˈe͡ɪs] (IPA) 
Plenum space refers to an area or chamber in a building that is commonly used for ventilation or the passage of air into and out of a room. This space is also known as the air handling space, and it connects different regions of a building. Synonyms for plenum space include air return plenum, supply-air plenum, HVAC plenum, and air distribution chamber. The term plenum space is mainly used in commercial buildings such as hospitals, hotels, or offices, where maintaining a comfortable and safe indoor environment is crucial for the occupants. These different synonyms are often used interchangeably and have the same meaning when referring to this specific area of a building.
