Biohazard Symbol - Official Warning Sign for Biological Hazards #1207180 (License: Personal Use)

This high-contrast red biohazard symbol, set against a black background, follows ISO 3864-3 standards for hazard communication. Its distinctive trefoil shape ensures immediate recognition in laboratories, medical facilities, waste disposal sites, and emergency response contexts. Designed in 1966 by Charles Baldwin, it remains unchanged due to its universal legibility and psychological impact.

Used on containers, doors, signage, and PPE in healthcare, research, and industrial settings to alert personnel to biological risks; matches user intent for safety compliance, hazard education, or regulatory reference.