air curtain

noun

1. an air stream across a doorway to exclude draughts, etc

Example Sentences

Opposite the air curtain was a huge sliding door, closed at the moment, which probably led to a freight elevator.

From Project Gutenberg

The men inside the ship can not unlock their ship unless they open the emergency air curtain.

From Project Gutenberg

The big man with the tiny child on his shoulder pushed through the air curtain that kept the warm humid air out of the shop.

From Project Gutenberg

He stepped through the hot-air curtain and flipped up his faceplate.

From Project Gutenberg