The Laerdal 851250 Patient Valve with 35 cm H₂O is designed for use in resuscitation and ventilation systems to regulate airflow and maintain controlled airway pressure during manual ventilation. Engineered for precision and safety, this valve helps ensure consistent delivery of ventilation support while reducing the risk of excessive pressure. Compatible with Laerdal resuscitation equipment, it is suitable for hospital, emergency, and training environments. Supplied as a single unit, it is an essential component for reliable patient ventilation.