💡 Train Smart, Save Lives! Meets ASTM standards for top-tier filtration efficiency. Single-use valves ensure maximum safety and effectiveness. WNL Products: A leader in CPR training innovation. Fits all WNL adult, child, and infant masks effortlessly. Individually wrapped for hygiene and convenience. Single Use Design Universal Compatibility 99.9% Filtration Efficiency The WNL Products 5000TV-CP Practi-Valve CPR Training Valve is a single-use, individually wrapped valve designed for compatibility with all WNL adult, child, and infant training masks. With a remarkable 99.9% filtration efficiency, it meets ASTM standards for safety and effectiveness, making it an essential tool for CPR training.