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CETA Calculations Exam Study Guide with Complete Solutions $9.49   Add to cart

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CETA Calculations Exam Study Guide with Complete Solutions

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CETA Calculations Exam Study Guide with Complete Solutions Explain how to calculate air changes per hour. - Correct Answer️️ -Room dimension: length x width x height = cubic feet. Total CFM from all HEPA filters in room. Total CFM / Room volume x 60 = ACPH. Explain how to calculate air ch...

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  • September 25, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
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  • CETa
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EmillyCharlotte
TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
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FIRST PUBLISHED: SEPTEMBER 2024

CETA Calculations Exam Study Guide
with Complete Solutions


Explain how to calculate air changes per hour. - Correct Answer✔️✔️-Room dimension:

length x width x height = cubic feet.




Total CFM from all HEPA filters in room.



Total CFM / Room volume x 60 = ACPH.

Explain how to calculate air changes per hour from PEC - Correct Answer✔️✔️-Length x

width x fpm = CFM.



Total CFM divided by room volume x 60 = ACPH per that particle PEC.

Explain how to determine minimum CFM required from ceiling HEPA filters in HD room.

- Correct Answer✔️✔️-Take minimum 30 ACPH (or whatever ACPH for that ISO Class) /

60 = 0.5 and multiply by the room volume (500 cu. ft.) =250 CFM total HEPA filtered air

supply.




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