The air-handling space above drop ceilings (and sometimes even between the walls and under structural floors) used to circulate and otherwise handle air in a building are called ____________________.

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The Answer of The air-handling space above drop ceilings (and sometimes even between the walls and under structural floors) used to circulate and otherwise handle air in a building are called ____________________.

The Air-Handling Space Above Drop Ceilings (And Sometimes Even Between