Researchers are conducting a study looking at the benefits and harms (pros and cons) of using airway clearance devices (ACDs) on someone who is choking. Traditional choking interventions (like abdominal thrusts, back blows, and chest compressions) have been recommended for decades, but recently ACDs have become a potential alternative to the traditional techniques. This study aims to improve the data about these devices. Click the link below to learn more about the study, and to share your LifeVac experience. We appreciate your time and help.