No Entry Door Sign - Prohibition Symbol for Restricted Access #3474887 (License: Personal Use)

The image displays a standard prohibition sign: a black silhouette of an open door centered inside a bold red circle with a diagonal red slash from top-left to bottom-right. This universally recognized symbol conveys that opening or using the door is strictly forbidden, often applied in industrial, medical, or high-security environments. The clean vector design ensures high visibility and immediate comprehension.

This image is typically used on safety signage, facility maps, digital interfaces (e.g., access control systems), or instructional materials to indicate doors that must remain closed or are off-limits. It matches user intent for understanding restricted zones, compliance training, or wayfinding in controlled environments.