RESPA Filtration Program: Standards & Classifications

Sy-Klone is serious about air quality in operator enclosures. RadialSHIELD® filters provide 100% seal integrity. Sy-Klone's patented MERV 16/F9 filter (minimum level of filtration recommended by NIOSH) uses unique nano technology which provides dramatically extended filter life. Sy-Klone's 200-series EPA and HEPA filters are ISO 23875 compliant, and our HEPA filters are effective on COVID-19-size particles. Not only does your operator breath easier, but HVAC systems stay clean and healthy as well! Read more about MERV vs. HEPA and how air filters work.
Print version: RESPA Filtration Program [PDF]

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Fresh Air Filters for RESPA-CF2, CF

Type and Length Sy-Klone
Part No.		 Filter Classification
(standard, classification @ nominal airflow)		 Minimum Average Efficiency, Nominal Airflow Effective Against Applications

MERV 16 Standard Length

FEFF208
Ejective filter cap

(Replaces FEFF108)

ASHRAE 52.2
ISO 11155-1
MERV 16

 

EN779:2002,
F9

MERV 16:
≥95% on 0.3 µm to 1.0 µm particle size
@ ≤ 150 CFM
(255 m3/h)

F9:
≥95% on 0.4 µm particle size
@ ≤ 150 CFM
(255 m3/h)

All 0.3 μm to 1.0 μm particulate, including:

  • All bacteria
  • Most tobacco smoke
  • Droplet nuclei (sneeze)
  • Respirable crystalline
  • silica (RCS)
  • Diesel particulate matter (DPM)
  • Other respirable particulate within the size range
  • Agricultural, meets EN15695 Category 2 cab filter requirement
  • Demolition
  • Construction
  • Waste, indoor recycling
  • Mining
  • Forestry/logging/mulching
  • Rail maintenance of way
  • All applications where respirable dust is present

MERV 16 Extended Length

FEFF209
Ejective filter cap

(Replaces FEFF109)

EPA Standard Length		 FEFF240
Ejective
filter cap

ISO 23875:2021
Ammendment 1,
ASHRAE 52.0,
ISO 11155-1
EPA

Meets
ISO 23875
Requirements

>99.6%
on 0.16 µm

Nominal Airflow
≤ 100 CFM
(170 m3/h)

Pressure ΔP
0.2 kPa

All MERV 16 contaminants, plus:

  • All combustion smoke
  • Carbon dust
  • Sea salt dust
  • Carcinogenic materials
  • Friable asbestos
  • ISO 23875 compliant filter
  • Agricultural, meets EN15695 Category 2 cab filter requirement
  • Demolition
  • Fire fighting
  • Industrial processing of cement, rock, aggregate,
    man-made stone
  • Mining
  • Rail maintenance of way
  • Waste and indoor recycling
  • Any applications where harmful particulate or ultra-fine aerosols are present

EPA Extended Length		 FEFF241
Ejective
filter cap

HEPA Standard Length		 FEFF218
Ejective filter cap

ISO 23875:2021 Amd. 1
EN1822-5, ISO 29463-5
ASHRAE 52.2,
ISO 11155-1
HEPA

Meets
ISO 23875
Requirements

Membrane media

99.99%
on 0.3 µ m

Initial Efficiency
≥99.95% @
MPPS1
(0.063 µm)

Nominal airflow
≤ 100 CFM
(170 m3/h)

Pressure ΔP
0.4 kPa

All MERV 16 contaminants, plus all 0.06 μm to 1.0 μm particulate, including:

  • Carcinogenic materials
  • Sub 100 nanometer particulate, such as:
    • Viruses
      (COVID-19 is 60nm - 100nm)
    • Respiratory droplet nuclei
    • Ultra fine aerosols
  • ISO 23875-compliant filter
  • Agricultural, meets
    EN15695 Category 3 cab filter requirement
  • Mining
  • Demolition
  • Waste, indoor recycling
  • Forestry fire fighting
  • Rail maintenance of way
  • Industrial processing of cement, rock, aggregate, man-made stone
  • Any applications where harmful particulate or ultra fine aerosols are of concern, or required by regulations

HEPA Extended Length		 FEFF219
Ejective filter cap

Odor+HEPA Standard Length Only

OF1312
Ejective filter cap

(Replaces FEFF131)

ISO 23875:2021 Amd. 1
EN1822-5, ISO 29463-5
ASHRAE 52.2,
ISO 11155-1
HEPA

and
ISO 11155-2,
Odor Retention
@ ≤ 50 CFM

Meets
ISO 23875
Requirements

99.99% @ 0.3 µm

Initial Efficiency ≥99.95% @ MPPS1 (0.063 µm)

Nominal airflow
≤ 50 CFM
(85 m3/h)

Pressure ΔP
0.2 kPa
  • General odors caused by particulate and non-toxic gas contaminants
  • Particulate as listed above for HEPA filters
  • Applications that involve non-toxic odors
  • ISO 23875-compliant filter
  • Agricultural, meets
    EN15695 Category 3 cab filter requirement
  • Farming and ag spraying equipment
  • Waste and indoor recycling
  • Applications as listed above for HEPA filters

Gas+HEPA Extended Length Only

GF130
Ejective filter cap

(Replaces FEFF130)

ISO 23875:2021 Amd. 1
EN1822-5, ISO 29463-5
ASHRAE 52.2,
ISO 11155-1
HEPA

and
EN12941:1998 + A1:2004 + A2:2008
Gas ABEK1

99.99% @ 0.3 µm Initial Efficiency ≥99.95% @ MPPS (0.1 µm)99.99% @ 0.3 µm

Initial Efficiency ≥99.95% @ MPPS1 (0.1 µm)

Nominal Airflow
≤ 50 CFM
(85 m3/h)
  • Ammonia gases
  • Inorganic gases
  • Sulfur gases
  • Volatile organic compounds (VOC)
  • Particulate as listed above for HEPA filters
  • For use in known toxic gas environments3
  • ISO 23875-compliant filter
  • Agricultural, meets
    EN15695 Category 4 cab filter requirement
  • Ag spraying equipment
  • Industrial processing, ore processing
  • Waste and indoor recycling
  • Applications as listed above for HEPA filters

Ammonia+HEPA Extended Length Only

GF132
Ejective filter cap

ISO 23875:2021 Amd. 1
EN1822-5, ISO 29463-5
ASHRAE 52.2,
ISO 11155-1
HEPA

and
EN12941:1998 + A1:2004 + A2:2008
Gas ABEK1

99.99% @ 0.3 µm Initial Efficiency ≥99.95% @ MPPS (0.1 µm)99.99% @ 0.3 µm

Initial Efficiency ≥99.95% @ MPPS1
(0.1 µm)

Nominal Airflow
@ ≤ 50 CFM
(85 m3/h)
  • Ammonia gases
  • Particulate as listed above for HEPA filters
  • For use in known ammonia gas environments3
  • ISO 23875-compliant filter
  • Agricultural, meets
    EN15695 Category 4 cab filter requirement
  • Waste and indoor recycling
  • Applications as listed above for HEPA filters

NOTES: µm = micrometer. Mishandling can result in loss of efficiency rating. Change filter based on cabin pressure. Hazardous gas or particulate environments require additional monitoring. For latest information, see sy-klone.com
1MPPS = Most Penetrating Particle Size. Each filter is leak tested in accordance with ISO 29463-4:2011, Annex F, at time of manufacture.
2Fits RESPA-CF2; RESPA-CF may require Odor Filter Retrofit Kit.
3Additional steps should be taken to monitor gas exposure. Use appropriate replacement interval.

Recirculated Air Filters for RESPA-CFX2, FFX2, PFX, CFX

Type and Length Sy-Klone
Part No.		 Filter Classification
(standard, classification @ nominal airflow)		 Minimum Average Efficiency, Nominal Airflow Effective Against Applications

MERV 16 Standard Length

FEFF211
Closed filter cap

ASHRAE 52.2
ISO 11155-1
MERV 16



EN779:2002,
F9

MERV 16:
≥95% on 0.3 µm to 1.0 µm particle size
@ ≤ 150 CFM
(255 m3/h)

F9:
≥95% on 0.4 µm particle size
@ ≤ 150 CFM
(255 m3/h)

All 0.3 μm to 1.0 μm particulate, including:

  • All bacteria
  • Most tobacco smoke
  • Droplet nuclei (sneeze)
  • Respirable crystalline
  • silica (RCS)
  • Diesel particulate matter (DPM)
  • Other respirable particulate within the size range
  • Agricultural, meets EN15695 Category 2 cab filter requirement
  • Demolition
  • Construction
  • Waste, indoor recycling
  • Mining
  • Forestry/logging/mulching
  • Rail maintenance of way
  • All applications where respirable dust is present

MERV 16 Standard Length		 FEFF220
FFX2, PFX only
Louvered filter cap

MERV 16 Extended Length		 FEFF212
Closed filter cap

EPA Standard Length		 FEFF243
Closed filter cap

ISO 23875:2021 Ammendment 1,
ASHRAE 52.0,
ISO 11155-1
EPA

Meets
ISO 23875 Requirements

99.6% @ 1.6 µm

Nominal Airflow
≤ 100 CFM
(170 m3/h)

Pressure ΔP
0.2 kPa

All MERV 16 contaminants, plus:

  • All combustion smoke
  • Carbon dust
  • Sea salt dust
  • Carcinogenic materials
  • Friable asbestos
  • ISO 23875 compliant filter
  • Agricultural, meets EN15695 Category 2 cab filter requirement
  • Demolition
  • Fire fighting
  • Industrial processing of cement, rock, aggregate,
    man-made stone
  • Mining
  • Rail maintenance of way
  • Waste and indoor recycling
  • Any applications where harmful particulate or ultra-fine aerosols are present

EPA Standard Length		 FEFF242
FFX2, PFX only
Louvered filter cap

EPA Extended Length		 FEFF244
Closed filter cap

HEPA Standard Length		 FEFF210
Closed filter cap

ISO 23875:2021 Amd. 1
EN1822-5, ISO 29463-5
ASHRAE 52.2,
ISO 11155-1
HEPA

Meets
ISO 23875
Requirements

Membrane media


99.99%
on 0.3 µ m

Initial Efficiency
≥99.95% @
MPPS
(0.063 µm)

Nominal airflow
≤ 100 CFM
(170 m3/h)

Pressure ΔP
0.4 kPa

All MERV 16 contaminants, plus all 0.06 μm to 1.0 μm particulate, including:

  • Carcinogenic materials
  • Sub 100 nanometer particulate, such as:
    • Viruses
      (COVID-19 is 60nm - 100nm)
    • Respiratory droplet nuclei
    • Ultra fine aerosols
  • ISO 23875-compliant filter
  • Agricultural, meets
    EN15695 Category 3 cab filter requirement
  • Mining
  • Demolition
  • Waste, indoor recycling
  • Forestry fire fighting
  • Rail maintenance of way
  • Industrial processing of cement, rock, aggregate, man-made stone
  • Any applications where harmful particulate or ultra fine aerosols are of concern, or required by regulations

HEPA Standard Length		 FEFF222
FFX2, PFX only
Louvered filter cap

HEPA Extended Length		 FEFF213
Closed filter cap

NOTES: µm = micrometer or micron. Mishandling can result in loss of efficiency rating. Change filter based on cabin pressure. Hazardous gas or particulate environments require additional monitoring.
1MPPS = Most Penetrating Particle Size. Each filter is leak tested in accordance with ISO 29463-4:2011, Annex F, at time of manufacture.

System Compatibilty Table

System Type RESPA Model Powered MERV 16 HEPA Odor/HEPA Gas/HEPA
Fresh Air Precleaning & Filtration RESPA-CF2 & CF • • • •* •**
Recirculated Air Filtration RESPA-CFX2 & CFX • • •
RESPA-FFX2 • •
* RESPA-CF may require installation of Odor Filter Retrofit Kit
** Gas/HEPA filter for use with Extended Length RESPA-CF2 only.

 

Part Number Conversion Table

Filter Part Numbers
(200-series replaces 100-series and original series)
New Part Number Replaces Part Numbers Rating Type Length
FEFF208 FEFF108, FEFF008 MERV 16/F9 Ejective (Fresh Air) Standard
FEFF209 FEFF109, FEFF009 MERV 16/F9 Ejective (Fresh Air) Extended
FEFF210 FEFF110, FEFF010 HEPA/H13 Closed (Recirc. Air) Standard
FEFF211 FEFF111, FEFF011 MERV 16/F9 Closed (Recirc. Air) Standard
FEFF212 FEFF112, FEFF012 MERV 16/F9 Closed (Recirc. Air) Extended
FEFF213 FEFF113, FEFF113 HEPA/H13 Closed (Recirc. Air) Extended
FEFF216 FEFF116 Engine Ejective Standard
FEFF217 FEFF117 Engine Ejective Extended
FEFF218 FEFF118, FEFF018 HEPA/H13 Ejective (Fresh Air) Standard
FEFF219 FEFF119, FEFF019 HEPA/H13 Ejective (Fresh Air) Extended
FEFF220 FEFF120 MERV 16/F9 Louvered (Recirc. Air) Standard
FEFF222 FEFF122 HEPA/H13 Louvered (Recirc. Air) Standard

 

IMPORTANT NOTES:

It is important that you select the RESPA Filter that best fits your application.

MERV is an acronym for "Minimum Efficiency Reporting Value". The MERV rating on an air filter describes its efficiency as a means of reducing the level of 3 to 10 micron-sized particles in air which passes through the filter. Higher "MERV" means higher filter efficiency. The purpose of the MERV standard is to permit an "apples to apples" comparison of the filtering efficiency of various air filters. <Read more about MERV and HEPA filter ratings>

HEPA air filters are not MERV rated as they exceed the ASHRAE test protocol 52.2 used in determining the MERV ratings. In fact, HEPA air filters are the ONLY mechanical air filters that are tested and certified to meet a specific efficiency at a specific particle size. All HEPA air filters must meet a minimum efficiency of 99.97% at 0.3 microns. <Read more about MERV and HEPA filter ratings>

Comparison of EU Standards to ASHRAE 52.1, 52.2 (MERV Ratings)
Considerable differences exist between filter ratings in North America and Europe. This article helps the reader to understand the differences between ASHREA and EU standards for Filtration. Additional light is shed on the significant differences in the HEPA filtration standards between the US Government and the European standards. This article will help the reader to appreciate the filtration offered by Sy-Klone International. <Read more about European filter standards and how they compare to MERV ratings>