Biohazard Warning Sign - Authorized Personnel Only #3735097 (License: Personal Use)

The image displays a high-contrast, rectangular warning sign with a bright yellow background and bold black border. At its center is the internationally recognized biohazard symbol-a black trefoil design-accompanied by the capitalized words “WARNING” at the top and “BIOHAZARD” with “AUTHORIZED PERSONNEL ONLY” below. The sign follows OSHA and ANSI standards for hazard communication in laboratories, healthcare facilities, and waste handling sites.

Used in medical, research, and industrial settings to mark areas containing infectious agents or biological hazards; it signals compliance with biosafety protocols and restricts unauthorized entry to protect public health.