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Q1 - Which of the following respirators has the highest protection factor? A) Powered air purifying. B) SCBA pressure demand full facepiece. C) Air-line demand

Q1 - Which of the following respirators has the highest protection factor? A) Powered air purifying. B) SCBA pressure demand full facepiece. C) Air-line demand full facepiece. D) Air-line continuous flow full facepiece.

Choose one of the above options and briefly explain your answer by stating the (range of) protection factor for each of the options.

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