open air

The sole stairway itself must either be pressurized to keep out the smoke or open air.

We were worried he rematerialized inside a tree or something, and now we know it was probably open air.

Arizona’s Coalition of Black Students and Allies praised Hamas’s Oct. 7’s “breach” of an “open air prison” as a “powerful emblem of Palestinian resistance.”

The team identified two distinct kinds of amber: one formed underground near the roots of resin-producing plants, and another that developed in the open air.

She liked working in the open air, though it was hard work.