Keep Door Closed at All Times - Safety Notice Sign #59090 (License: Personal Use)

This rectangular safety sign features a bold blue header with “NOTICE” in white uppercase letters, followed by black text stating “KEEP DOOR CLOSED AT ALL TIMES” on a white background. To the right, a red circle with a diagonal slash overlays a black silhouette of an open door, visually reinforcing the prohibition. The design follows OSHA and ANSI standards for high visibility and immediate comprehension in industrial, healthcare, and office environments.

Used in hallways, stairwells, server rooms, or fire-rated corridors where maintaining door closure is essential for fire containment, air pressure control, or security. Matches user intent for purchasing, installing, or understanding regulatory signage requirements.