NAFA CAFS - CERTIFIED AIR FILTER SPECIALIST EXAM
QUESTIONS AND CORRECT ANSWERS 100% VERIFIED 2026
UPDATE!! ALREADY GRADED A+
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
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
, NAFA CAFS - CERTIFIED AIR FILTER SPECIALIST EXAM
QUESTIONS AND CORRECT ANSWERS 100% VERIFIED 2026
UPDATE!! ALREADY GRADED A+
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
What are the factors affecting ESP design and efficiency - (ANSWER)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 - (ANSWER)Virus, Bacteria, Fungi
A baghouse is composed of - (ANSWER)house, hoppers, tubesheet and plenum
A typical oil mist electrostatic presipitator has what sections (inlet to outlet) - (ANSWER)Baffle, ionizer,
collecting, fan and optional after filter
PCO has how many types of reactor configurations - (ANSWER)4
In the filter industry, a manometer is used to measure what? - (ANSWER)Pressure drop across the filter
Airflow through a booth must be? - (ANSWER)high enough to keep the concentration of VOC vapor
below 25% of its lowest explosive limit
ULPA stands for? - (ANSWER)Ultimate low penetration Air Filter
Name the components of a HEPA filter - (ANSWER)Media, separators, filter pack, sealant, framing,
gasketing
QUESTIONS AND CORRECT ANSWERS 100% VERIFIED 2026
UPDATE!! ALREADY GRADED A+
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
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
, NAFA CAFS - CERTIFIED AIR FILTER SPECIALIST EXAM
QUESTIONS AND CORRECT ANSWERS 100% VERIFIED 2026
UPDATE!! ALREADY GRADED A+
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
What are the factors affecting ESP design and efficiency - (ANSWER)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 - (ANSWER)Virus, Bacteria, Fungi
A baghouse is composed of - (ANSWER)house, hoppers, tubesheet and plenum
A typical oil mist electrostatic presipitator has what sections (inlet to outlet) - (ANSWER)Baffle, ionizer,
collecting, fan and optional after filter
PCO has how many types of reactor configurations - (ANSWER)4
In the filter industry, a manometer is used to measure what? - (ANSWER)Pressure drop across the filter
Airflow through a booth must be? - (ANSWER)high enough to keep the concentration of VOC vapor
below 25% of its lowest explosive limit
ULPA stands for? - (ANSWER)Ultimate low penetration Air Filter
Name the components of a HEPA filter - (ANSWER)Media, separators, filter pack, sealant, framing,
gasketing
