Incorporating a plenum can have its design advantages, but corridors serving adjoining areas of health care occupancies are prohibited from being used for a portion of an air supply, air return, or ...

When it comes to the plenum area, “out of sight” must never become “out of mind.” Whether located under an elevated floor, such as in a data center, or above the dropdown ceiling of a conference room, ...

When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. To supply this air to the furnace room, ...