We use both of them to put out a fire on an object not on a person

You: ‘Yes, but what happens if a student in the lab catches fire? How will we put out the fire?’

She points to a poster illustrating the use of a fire blanket on a person.

From:https://www.wikihow.com/Use-a-Fire-Blanket#/Image:Use-a-Fire-Blanket-Step-8-Version-5.jpg

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