LifeVac is a non-powered, non-invasive, airway clearance device developed for resuscitating a victim with an airway obstruction when current choking protocols have been followed without success. The LifeVac has a one-way valve that does not allow any air to enter a choking victim on the downward motion. The LifeVac has been used to have help save thousands of lives during choking emergencies. The LifeVac Home Kit is the perfect addition to your household safety.