NAFA CAFS TEST QUESTIONS AND ANSWERS LATEST
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
A TB isolation room must be kept under a ____________ pressure.
a.) Positive
b.) Negative
c.) Laminar
d.) Static - CORRECT ANSWERS b.) Negative
NAFA Guide to Air Filtration, 5th ed. 2014, page 10.8
All biological safety cabinets require periodic certification and filter change. True or false? -
CORRECT ANSWERS True.
NAFA Guide to Air Filtration, 5th ed. 2014, page 10.10
ANSI/ASHRAE Standard 62.1-2013 Section 5.9 states that schools shall have a filter efficiency of
at least MERV __. - CORRECT ANSWERS 8
NAFA Guide to Air Filtration, 5th ed. 2014, page 12.8
What is the primary reason for a prefilter? - CORRECT ANSWERS Life extension of the
final filter.
NAFA Guide to Air Filtration, 5th ed. 2014, page 13.5
,NAFA CAFS TEST QUESTIONS AND ANSWERS LATEST
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
When estimating the annual cost of owning and operating a filter system, you should factor in
what? - CORRECT ANSWERS Annual depreciation of equipment.
Annual operating costs, including:
- Initial investment
- Inventory costs
- Shipping costs
- Damage/Storage loss costs
- Installation and removal costs
- Disposal costs
- Energy costs
NAFA Guide to Air Filtration, 5th ed. 2014, page 13.7
Short-wave ultraviolet radiation in the "C" band, has a germicidal effect on microorganisms.
What span of wavelengths does this utilize?
a.) 1-10
b.) 1800-1930
c.) 200-280
d.) 100-200 - CORRECT ANSWERS c.) 200-280 nanometers
NAFA Guide to Air Filtration, 5th ed. 2014, page 14.1
, NAFA CAFS TEST QUESTIONS AND ANSWERS LATEST
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
Metal working fluids (MWF) are used to:
a.) Reduce the temperature of the cutting tools
b.) Reduce the temperature of the production part
c.) Clean the production part
d.) All of the above - CORRECT ANSWERS d.) All of the above.
MWF are used to cool, lubricate, and clean the produced part and the tools.
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.1
Properly designed source-capture mist collection systems must have continuous airflow. True
or false? - CORRECT ANSWERS True.
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.4
Oil mist and smoke separators can be divided into what 3 parts? - CORRECT ANSWERS
1.) Media-type filtration systems
2.)Centrifugal separators and cyclone separators
3.)Electrostatic precipitators
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.5
Shaker baghouses are named "Shaker" because:
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
A TB isolation room must be kept under a ____________ pressure.
a.) Positive
b.) Negative
c.) Laminar
d.) Static - CORRECT ANSWERS b.) Negative
NAFA Guide to Air Filtration, 5th ed. 2014, page 10.8
All biological safety cabinets require periodic certification and filter change. True or false? -
CORRECT ANSWERS True.
NAFA Guide to Air Filtration, 5th ed. 2014, page 10.10
ANSI/ASHRAE Standard 62.1-2013 Section 5.9 states that schools shall have a filter efficiency of
at least MERV __. - CORRECT ANSWERS 8
NAFA Guide to Air Filtration, 5th ed. 2014, page 12.8
What is the primary reason for a prefilter? - CORRECT ANSWERS Life extension of the
final filter.
NAFA Guide to Air Filtration, 5th ed. 2014, page 13.5
,NAFA CAFS TEST QUESTIONS AND ANSWERS LATEST
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
When estimating the annual cost of owning and operating a filter system, you should factor in
what? - CORRECT ANSWERS Annual depreciation of equipment.
Annual operating costs, including:
- Initial investment
- Inventory costs
- Shipping costs
- Damage/Storage loss costs
- Installation and removal costs
- Disposal costs
- Energy costs
NAFA Guide to Air Filtration, 5th ed. 2014, page 13.7
Short-wave ultraviolet radiation in the "C" band, has a germicidal effect on microorganisms.
What span of wavelengths does this utilize?
a.) 1-10
b.) 1800-1930
c.) 200-280
d.) 100-200 - CORRECT ANSWERS c.) 200-280 nanometers
NAFA Guide to Air Filtration, 5th ed. 2014, page 14.1
, NAFA CAFS TEST QUESTIONS AND ANSWERS LATEST
UPDATED 2025/2026 A COMPLETE EXAM SOLUTION ALL
ANSWERS 100% CORRECT DETAILED BEST GRADED A+
FOR SUCCESS
Metal working fluids (MWF) are used to:
a.) Reduce the temperature of the cutting tools
b.) Reduce the temperature of the production part
c.) Clean the production part
d.) All of the above - CORRECT ANSWERS d.) All of the above.
MWF are used to cool, lubricate, and clean the produced part and the tools.
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.1
Properly designed source-capture mist collection systems must have continuous airflow. True
or false? - CORRECT ANSWERS True.
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.4
Oil mist and smoke separators can be divided into what 3 parts? - CORRECT ANSWERS
1.) Media-type filtration systems
2.)Centrifugal separators and cyclone separators
3.)Electrostatic precipitators
NAFA Guide to Air Filtration, 5th ed. 2014, page 15.5
Shaker baghouses are named "Shaker" because:
