CETA Calculations Exam Study Guide with Complete Solutions
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Course
CETa
Institution
CETa
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...
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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