What is type four PFD?

Type IV Personal Flotation Devices (PFDs) are throwable devices designed to provide buoyancy and assist individuals in distress in the water. Unlike wearable PFDs, Type IVs are not intended to be worn but are meant to be thrown to a person in need of assistance. Common examples include life rings and buoyant cushions. They are essential safety equipment on boats, enhancing the chances of survival in emergencies.