The Falcon Guardian is a single hinged ballistic door — not a two-door set and not a replacement for the door you already have. It mounts at the classroom opening and stays out of the way during normal school days.
In a shooter situation, staff close and lock the classroom door exactly as they are trained to, then slam the Guardian shut over the threshold and secure it. The opening that is normally the most vulnerable surface in the room is now covered by rated armor.
The result is a room that holds. Instead of a hollow-core door and a single latch, the class is behind ballistic armor while officers respond.
The Guardian is built to the same protection level as the Falcon Shield — NIJ 0101.07 RF1 (legacy Level III+) and UL 752 Level 8 — so the door matches the armor your team already trusts.