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NAFA CAFS /Exam Questions and answers, rated A+/ 2024-25 Exam board exam predictions. APPROVED/
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NAFA CAFS /Exam Questions and answers, rated A+ What are the 3 types of media used in contaminate control - -Active carbon, chemically treated carbon, potassium permanganate What is residence time? - -the time it takes air to cross a distance equal to the thickness of the filter without acc...
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