NAFA CAFS /Exam---REAL ACTUAL EXAM --LATEST
UPDATE 2025 | COMPLETE QUESTIONS WITH CORRECT
DETAILED ANSWERS| RATED 100% CORRECT | ALREADY
GRADED A+ | GUARANTEED PASS!!
What are the 3 types of media used in contaminate control - (answers)Active carbon,
chemically treated carbon, potassium permanganate
What is residence time? - (answers)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 - (answers)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 - (answers)The fraction of the contaminate that once in
contact with the media is removed by either physical or chemical means
What is Capacity - (answers)The amount the media is capable of removing - this
determines the life of the filter
What are two types of filter options - (answers)partial bypass, total retention
What is the ASHRAE standard 62.1/62.2 - (answers)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? - (answers)4
What are the IAQ testing applications - (answers)Particulate contaminants, Gas phase,
systems integrity, comfort parameters
What are the control strategies - (answers)Filtration, source removal, Dilution
Min demonstrated overspray filter eff must be at least - (answers)98%
What is the min eff for a Super ULPA - (answers)99.9999% on MPPS
What are the factors affecting ESP design and efficiency - (answers)partical size,
velocity through filter, voltage on ionizer and collector, collector plate spacing, collector
plate loading, ionizer spacing and ozone
, What are the types of Microorganisms - (answers)Virus, Bacteria, Fungi
A baghouse is composed of - (answers)house, hoppers, tubesheet and plenum
A typical oil mist electrostatic presipitator has what sections (inlet to outlet) -
(answers)Baffle, ionizer, collecting, fan and optional after filter
PCO has how many types of reactor configurations - (answers)4
In the filter industry, a manometer is used to measure what? - (answers)Pressure drop
across the filter
Airflow through a booth must be? - (answers)high enough to keep the concentration of
VOC vapor below 25% of its lowest explosive limit
ULPA stands for? - (answers)Ultimate low penetration Air Filter
Name the components of a HEPA filter - (answers)Media, separators, filter pack,
sealant, framing, gasketing
What size particles behave like a gas, have negligible settling rates and are affected by
Brownian Motion - (answers)Particals less than .1 microns
A 2 stage air cleaner utilizes what 2 things? - (answers)An Ionizer section, a collector
section
Name the types of HEPA separator styles - (answers)'aluminum and mini pleat
Name the different HEPA frame material - (answers)Partical board, plywood, extruded
alum, formed sheet metal
What is media velocity - (answers)the speed of the air as it moves through the filter
media
What are the types of HEPA filter sealants - (answers)Rubber bases, urethane, epoxy,
hot melt, silicone
What are the styles of Dust Separation equipment - (answers)cyclone, shaker, reverse
pulse, jet pulse
What are the different types of air cleaners - (answers)media, electronic, agglomorators
what is the minimum efficiency for ULPA - (answers)99.999% on .1 to .2 microns
What are the two types of cleanroom filters - (answers)roomoside replaceable ceiling
module, fan powered module
UPDATE 2025 | COMPLETE QUESTIONS WITH CORRECT
DETAILED ANSWERS| RATED 100% CORRECT | ALREADY
GRADED A+ | GUARANTEED PASS!!
What are the 3 types of media used in contaminate control - (answers)Active carbon,
chemically treated carbon, potassium permanganate
What is residence time? - (answers)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 - (answers)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 - (answers)The fraction of the contaminate that once in
contact with the media is removed by either physical or chemical means
What is Capacity - (answers)The amount the media is capable of removing - this
determines the life of the filter
What are two types of filter options - (answers)partial bypass, total retention
What is the ASHRAE standard 62.1/62.2 - (answers)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? - (answers)4
What are the IAQ testing applications - (answers)Particulate contaminants, Gas phase,
systems integrity, comfort parameters
What are the control strategies - (answers)Filtration, source removal, Dilution
Min demonstrated overspray filter eff must be at least - (answers)98%
What is the min eff for a Super ULPA - (answers)99.9999% on MPPS
What are the factors affecting ESP design and efficiency - (answers)partical size,
velocity through filter, voltage on ionizer and collector, collector plate spacing, collector
plate loading, ionizer spacing and ozone
, What are the types of Microorganisms - (answers)Virus, Bacteria, Fungi
A baghouse is composed of - (answers)house, hoppers, tubesheet and plenum
A typical oil mist electrostatic presipitator has what sections (inlet to outlet) -
(answers)Baffle, ionizer, collecting, fan and optional after filter
PCO has how many types of reactor configurations - (answers)4
In the filter industry, a manometer is used to measure what? - (answers)Pressure drop
across the filter
Airflow through a booth must be? - (answers)high enough to keep the concentration of
VOC vapor below 25% of its lowest explosive limit
ULPA stands for? - (answers)Ultimate low penetration Air Filter
Name the components of a HEPA filter - (answers)Media, separators, filter pack,
sealant, framing, gasketing
What size particles behave like a gas, have negligible settling rates and are affected by
Brownian Motion - (answers)Particals less than .1 microns
A 2 stage air cleaner utilizes what 2 things? - (answers)An Ionizer section, a collector
section
Name the types of HEPA separator styles - (answers)'aluminum and mini pleat
Name the different HEPA frame material - (answers)Partical board, plywood, extruded
alum, formed sheet metal
What is media velocity - (answers)the speed of the air as it moves through the filter
media
What are the types of HEPA filter sealants - (answers)Rubber bases, urethane, epoxy,
hot melt, silicone
What are the styles of Dust Separation equipment - (answers)cyclone, shaker, reverse
pulse, jet pulse
What are the different types of air cleaners - (answers)media, electronic, agglomorators
what is the minimum efficiency for ULPA - (answers)99.999% on .1 to .2 microns
What are the two types of cleanroom filters - (answers)roomoside replaceable ceiling
module, fan powered module
