What is the function of a PFD (Personal Flotation Device)?

The primary function of a Personal Flotation Device (PFD) is to keep a person afloat in water. PFDs are designed to provide buoyancy, which helps individuals maintain a safe position on the water's surface, even if they become unconscious or unable to swim. This is critical in emergency situations where a person may fall overboard or capsize.

While it is possible for a PFD to assist in preventing someone from tipping over or to provide warmth in cold water, those are secondary benefits and not the main purpose. Signaling for help is also not a function of a PFD, as that's typically done with other safety equipment like whistles or flares. Therefore, understanding that the fundamental role of a PFD is to ensure buoyancy and keep people safely afloat is essential for boating safety.