The study "Understanding the Effect of Feedback on Ventilation Performance of Rescuers in a Simulation Trial" will address treatments administered by Emergency Medical Services (EMS) during cardiopulmonary resuscitation (CPR) in simulated out-of-hospital cardiac arrest (OHCA). The investigators propose a randomized controlled trial among EMS responders to compare quality of rescue breathing performance with and without real-time feedback, along with evaluating CPR strategies (providing rescue breathing during pauses interrupting chest compression vs rescue breathing during uninterrupted chest compressions). The goal of this trial is to learn if visual feedback improves the ability of rescuers to deliver a specified amount of air. The main questions the study aims to answer are: * Does real-time visual feedback improve ventilation performance and the ability of rescuers to provide a specified amount of air? * Will different CPR strategies change the effect of feedback on performance? Researchers will compare real-time feedback to no feedback (not showing the visual feedback) to see if real-time feedback works to improve performance. Rescuers will: * Deliver assisted ventilation breaths to a mannequin with and without feedback with two different CPR strategies in one session. * Fill out a survey about the experience level.
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Proportion of guideline compliant ventilations
Timeframe: 20 minutes