roomful

Preposition: of

• people: How is spinning to a roomful of people in an ecstatic trance induced solely by your music like a spiritual experience?
• air: I've breathed so many roomfuls of air with you that we're light-headed, commuting oxygen down phone lines.

Converse of object

• have: Sometimes the babies are adopted, other times, like now, nothing happens and suddenly we have a roomful of them.
• require: However, with many conventional approaches, the experience often requires a roomful of electronics and a stack of manuals to explain them.