Safety Puff is designed to prevent crowd crush accidents and protect lives in densely populated spaces. While many perceive such incidents as unpredictable, data shows they predominantly occur in event settings, where crowd density inherently increases risk. Since banning events is impractical, Safety Puff offers a solution that ensures safety without disrupting events, catering to both organizers and participants. Featuring a simple, intuitive design, Safety Puff allows users to quickly assume a crush-prevention posture by pulling a cord with both hands, enabling immediate response even in panic situations. Furthermore, it empowers users with a proactive sense of control, preventing unpredictable disasters before they occur. Safety Puff redefines safety standards, shifting from reactive to preventive measures, and introduces a new paradigm in crowd safety. By combining innovative design with user-centric functionality, Safety Puff sets a new benchmark for safety in crowded environments, contributing to a safer society.