There are many different types of personal flotation devices (PFDs), and each has its own advantages. Type IV PFDs are designed for use in rescue situations and offer several benefits over other types of PFDs.
One advantage of a Type IV PFD is that it can be thrown to someone who is in the water. This type of PFD is also known as a throwable device or a rescue ring. Type IV PFDs are highly visible and will float upright, making them easy to spot in the water. They also have a strap or handle that can be used to pull the person to safety.
Another advantage of a Type IV PFD is that it provides more flotation than other types of PFDs. This makes them ideal for rescuing larger individuals or those who are struggling in the water. Additionally, Type IV PFDs can be used as support devices for people who are swimming or treading water.
Finally, some Type IV PFDs come equipped with additional features such as whistles or lights. These can be helpful in attracting attention and signal for help in an emergency situation