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life jacket
A type V (5) PFD is a Special use, or windsurfing PFD.
My life jacket saved me from drowning in the pool. is that what you wanted? lol sorry that probably really sucked...
We do not know what you mean by "PFD", please do not use abbreviations. But the answer would be when the instructions for the "PFD" say it needs to be replaced.
It should be two words: life jacket. But it is probably better to hyphenate it as life-jacket. The two words are inseperable and make a concept different from what a jacket is--a life-jacket is not a kind of jacket. Semantically, they form a single word. Probably in due course it will be spelled as a single word, but in the meantime use the hyphen.
You can use PFD approved device styles 2-5, I'm pretty sure
You must need life jacket in order to survive on a boat or ship.
I wear a jacket in the fall time.
Helium is the safest gas to fill in balloons, as it is light and noncombustable.
He tripped and fell from the boat into the water, but was buoyed by his life jacket. The word buoyed is used as a verb.
It determines how you use it.
oxygen mask emergency exit life jacket barf bag parachute