NAFA CAFS ACTUAL EXAM WITH 130 REAL QUESTIONS
AND VERIFIED CORRECT ANSWERS ALREADY GRADED
A+ |GUARANTEED SUCCESS |NAFA CAFS LATEST UPDATE
| [BRAND NEW!!]
What are the different types of air cleaners - ANSWER ✔✔- media,
electronic, agglomorators
what is the minimum efficiency for ULPA - ANSWER ✔✔- 99.999%
on .1 to .2 microns
What are the two types of cleanroom filters - ANSWER ✔✔-
roomoside replaceable ceiling module, fan powered module
Removal of dust on an elctronic air cleaner is done how - ANSWER
✔✔- washed off, if it has agglomerated it can be blown off
Lofted glass media can be found most often in what style filter -
ANSWER ✔✔- Pocket or rigid
What is final resistance - ANSWER ✔✔- pressure at which the filter
would be considered fully loaded
1|Page
,how do mechanical filters remove dust - ANSWER ✔✔- capturing on
media
Why can't electronic air cleaners be tested for loading using the
ASHRAE 52.2 test - ANSWER ✔✔- carbon in the dust shorts out the
electrical connections
What are the 3 types of media used in contaminate control -
ANSWER ✔✔- Active carbon, chemically treated carbon, potassium
permanganate
What is residence time? - ANSWER ✔✔- the time it takes air to cross
a distance equal to the thickness of the filter without accounting for
the resistance of the media through which it travels
What are the variations of the contamination control principle -
ANSWER ✔✔- clean the air required by the process, blanket the
product with cleaned air, offer enough air flow to move
contaminated air away from the product
What is removal efficiency - ANSWER ✔✔- The fraction of the
contaminate that once in contact with the media is removed by
either physical or chemical means
2|Page
, What is Capacity - ANSWER ✔✔- The amount the media is capable
of removing - this determines the life of the filter
What are two types of filter options - ANSWER ✔✔- partial bypass,
total retention
What is the ASHRAE standard 62.1/62.2 - ANSWER ✔✔- Ventilation
for acceptable indoor air quality to specific minimum ventilation
rates IAQ which will be acceptable to humans and are intended to
avoid adverse health effects
How many classifications of air is there? - ANSWER ✔✔- 4
What are the IAQ testing applications - ANSWER ✔✔- Particulate
contaminants, Gas phase, systems integrity, comfort parameters
What are the control strategies - ANSWER ✔✔- Filtration, source
removal, Dilution
Min demonstrated overspray filter eff must be at least - ANSWER
✔✔- 98%
What is the min eff for a Super ULPA - ANSWER ✔✔- 99.9999% on
MPPS
3|Page
AND VERIFIED CORRECT ANSWERS ALREADY GRADED
A+ |GUARANTEED SUCCESS |NAFA CAFS LATEST UPDATE
| [BRAND NEW!!]
What are the different types of air cleaners - ANSWER ✔✔- media,
electronic, agglomorators
what is the minimum efficiency for ULPA - ANSWER ✔✔- 99.999%
on .1 to .2 microns
What are the two types of cleanroom filters - ANSWER ✔✔-
roomoside replaceable ceiling module, fan powered module
Removal of dust on an elctronic air cleaner is done how - ANSWER
✔✔- washed off, if it has agglomerated it can be blown off
Lofted glass media can be found most often in what style filter -
ANSWER ✔✔- Pocket or rigid
What is final resistance - ANSWER ✔✔- pressure at which the filter
would be considered fully loaded
1|Page
,how do mechanical filters remove dust - ANSWER ✔✔- capturing on
media
Why can't electronic air cleaners be tested for loading using the
ASHRAE 52.2 test - ANSWER ✔✔- carbon in the dust shorts out the
electrical connections
What are the 3 types of media used in contaminate control -
ANSWER ✔✔- Active carbon, chemically treated carbon, potassium
permanganate
What is residence time? - ANSWER ✔✔- the time it takes air to cross
a distance equal to the thickness of the filter without accounting for
the resistance of the media through which it travels
What are the variations of the contamination control principle -
ANSWER ✔✔- clean the air required by the process, blanket the
product with cleaned air, offer enough air flow to move
contaminated air away from the product
What is removal efficiency - ANSWER ✔✔- The fraction of the
contaminate that once in contact with the media is removed by
either physical or chemical means
2|Page
, What is Capacity - ANSWER ✔✔- The amount the media is capable
of removing - this determines the life of the filter
What are two types of filter options - ANSWER ✔✔- partial bypass,
total retention
What is the ASHRAE standard 62.1/62.2 - ANSWER ✔✔- Ventilation
for acceptable indoor air quality to specific minimum ventilation
rates IAQ which will be acceptable to humans and are intended to
avoid adverse health effects
How many classifications of air is there? - ANSWER ✔✔- 4
What are the IAQ testing applications - ANSWER ✔✔- Particulate
contaminants, Gas phase, systems integrity, comfort parameters
What are the control strategies - ANSWER ✔✔- Filtration, source
removal, Dilution
Min demonstrated overspray filter eff must be at least - ANSWER
✔✔- 98%
What is the min eff for a Super ULPA - ANSWER ✔✔- 99.9999% on
MPPS
3|Page
