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Filter Replacement Access

Terra Part #PriceShips in
120/230 VPowder-Coated Steel2'x2'HEPATop Side 6601-22A-H-EC 72775 $1,1111-3 Days2
120/230 VPowder-Coated Steel2'x2'HEPARoom-Side 6601-22B-HR-EC 72770 $1,7181-3 Days3
120/230 VPowder-Coated Steel2'x2'ULPATop Side 6601-22A-U-EC 72836 $1,3151-3 Days4
120/230 VPowder-Coated Steel2'x2'ULPARoom-Side 6601-22B-UR-EC 72774 $1,7015-9 Days5
120/230 VPowder-Coated Steel2'x3'HEPATop Side 6601-23A-H-EC 72884 $1,1111-3 Days6
120/230 VPowder-Coated Steel2'x3'HEPARoom-Side 6601-23B-HR-EC 72881 $1,6870-2 Days7
120/230 VPowder-Coated Steel2'x3'ULPATop Side 6601-23A-U-EC 72891 $1,3155-9 Days8
120/230 VPowder-Coated Steel2'x3'ULPARoom-Side 6601-23B-UR-EC 72883 $1,7011-3 Days9
120/230 VPowder-Coated Steel2'x4'HEPATop Side 6601-24A-H2-EC 72939 $1,3355-9 Days10
120/230 VPowder-Coated Steel2'x4'HEPARoom-Side 6601-24B-HR-EC 72936 $1,8031-3 Days11
120/230 VPowder-Coated Steel2'x4'ULPATop Side 6601-24A-U-EC 72945 $1,3151-3 Days12
120/230 VPowder-Coated Steel2'x4'ULPARoom-Side 6601-24B-UR-EC 72938 $1,7015-9 Days13
120/230 VStainless Steel2'x2'ULPATop Side 6601-22A-USS-EC 72879 $1,9271-3 Days14
120/230 VStainless Steel2'x2'ULPARoom-Side 6601-22B-URSS-EC 73539 $2,3131-3 Days15
120/230 VStainless Steel2'x3'HEPATop Side 6601-23A-HSS-EC 72888 $1,7235-9 Days16
120/230 VStainless Steel2'x3'HEPARoom-Side 6601-23A-HRSS-EC 70982 $2,2141-3 Days17
120/230 VStainless Steel2'x3'ULPATop Side 6601-23A-USS-EC 72892 $1,9271-3 Days18
120/230 VStainless Steel2'x3'ULPARoom-Side 6601-23B-URSS-EC 73540 $2,3135-9 Days19
120/230 VStainless Steel2'x4'HEPATop Side 6601-24A-HSS-EC 72942 $1,7231-3 Days20
120/230 VStainless Steel2'x4'ULPATop Side 6601-24A-USS-EC 72946 $1,9271-3 Days21
120/230 VStainless Steel2'x4'ULPARoom-Side 6601-24B-URSS-EC 73541 $2,3131-3 Days22
120/230 VPowder-Coated Steel2'x2'HEPATop Side 6601-22A-H-EC-CA 72776 $1,1841-3 Days23
120/230 VPowder-Coated Steel2'x3'HEPATop Side 6601-23A-H-EC-CA 72885 $1,1841-3 Days24
120/230 VPowder-Coated Steel2'x4'HEPATop Side 6601-24A-H-EC 72940 $1,1111-3 Days25
120/230 VPowder-Coated Steel2'x4'HEPATop Side 6601-24A-H-EC-CA 72941 $1,1845-9 Days26
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Filter
Filter Replacement Access
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Product Details

• WhisperFlow® baffling technology supports uniform velocity across the face of the filter for truly laminar air flow

• Choose from powder-coated steel or all stainless steel housing

• Choose from room-side-replaceable or top-side-replaceable filter

• Room-side-replaceable filter units feature a Gel-sealed filter and easy-open clips to allow fast filter replacement from below without breaching the cleanroom ceiling

• EC brushless motors for quiet, energy-efficient operation and infinitely variable speed control

• Forward-curved centrifugal fans

• Generate less vibration, noise and heat than standard FFUs with AC motors

• Low-heat and low-noise production only 40 dBA, measured 12" from filter face @ 90 FPM

• Ethernet ports for remote monitoring and control

• Models with all-stainless steel housing and filter frame meet strictest cleanroom requirements

• Includes a Merv 7 pre-filter and main HEPA or ULPA filter to help meet ISO cleanliness standards

• HEPA filters remove particles down to 0.3 µm at 99.99% efficiency

• ULPA filters remove particles down to 0.12 µm at 99.999% efficiency

• Complies with Title 24 and ErP 2015 Directive

• Brushless EC motors have internal micro-processors

• Provide a much wider flow range, from 110 to 1117 CFM, ideal for applications involving high static pressure

• Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face

• 1/4-20 UNC threaded inserts on corners to allow suspension by guy-wires

• MERV 7 pre-filter, 30% ASHRAE rated

• Low-profile design is ideal for cleanrooms with limited ceiling space

• Filters are leak tested in accordance with IEST standards and meet UL 900

See performance data and submittal sheets for additional information

Optional Accessories:

Challenge port kit

Power plug adapter

Stainless surface mount frame for installing FFU in ceiling without T-grid

12” ducted inlet connection adapter

Replacement filter

Filter replacement alarm

Eye bolt package

Ionizing bar

Pre-filter safety cover, for CE conformance

Control panel with night mode switch and power distribution modules

Unit of Measure: of 1

Features & Benefits

Features and Benefits

Filter Fan Units Prevent Infection

Did You Know?
Fan/Filter Units Do More Than Meet ISO Requirements—they also prevent infection.

Most cleanroom professionals understand that FFUs capture contaminants that degrade particle-sensitive samples. But they also remove bacteria and many viruses and mold spores that contribute to a host of infections.

Most common bacteria are contained by the 0.3-micron pore size of high-efficiency particular air (HEPA) filters. Ultra-Low Penetration Air (ULPA) filters, which are rated 99.999% efficient at retaining particles of 0.12 microns and larger in diameter, capture ultra-fine contaminants, including many large viruses and mold spores.

These filters also remove aerosol-born pathogens—germs that hitch a ride on larger particles and liquid droplets that are captured in a HEPA or ULPA filter. HEPA- or ULPA-based Fan/Filter Units (FFUs) thus can play an important role in infection prevention in surgical theaters, ICUs and other medical settings.

Additionally, HEPA filters can help filter pollen, tiny insects, bacteria, mold, and other fungal spores that might be present during plant tissue culture or cannabis production. Contaminants such as these can find a way in via personnel or normal HVAC units and can blight crops and reduce yields. HEPA Filters help increase crop yields, pass inspection/meet regulations, and reduce contamination.

Here is a list of common human pathogens that HEPA/ULPA filters capture and remove from circulation:

Pathogens: Bacteria and Diseases
  • Escherichia coli: Gastrointestinal infection
  • Bacillus anthracis : Anthrax
  • Aspergillus brasiliensis: Sinus infections
  • Francisella tularensis: Tularemia
  • Bordetella pertusis : Whooping cough
  • Mycoplasma pneumaoniae: Pneumonia
  • Chlamydia pneumoniae: Bronchitis
  • Clamydia psittaci : Psittacosis
  • Klebsiella pneumoniae: Opportunistic infections
  • Haemophilus influenzae : Meningitis
  • Coxiella burnetii : Q fever
  • Pseudomonas aeruginosa: Opportunistic infections
  • Actinomyces israelii: Actinomycosis
  • Legionella pneumophila: Legionaire's disease
  • Thermoactinomyces sacchari: Farmer's lung
  • Alkaligenes: Opportunistic infections
  • Streptococcus pyogenes : Scarlet fever
  • Mycobacterium Tuberculosis : Tuberculosis

Quick-Connect Fittings

FFUs and lights can be easily added as cleanrooms requirements change, or disconnected for maintenance, without the need to run additional power lines or involve an electrician.

Air Flow Uniformity

Unique WhisperFlow® FFU baffling system and anodized diffuser plate promote uniform air speed across the filter face.

Full Range of Designs, Configurations!

WhisperFlow® FFFUs come in all styles: room-side replaceble, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more (shown: vapor filtration module with UV sanitation lamp).

Long Running FFU Motors

Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.

Durable Powder Coating Finish

Terra’s durable powder coating formulation exceeds the ASTM and ISO paint standards for hardness, thickness, humidity resistance, gloss and impact testing.

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit
    Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle.
  • Ionizing Bar; 22"L, with Installation Kit, for 24 x 24 Fan/Filter Unit
    Ionizing bar, mounted to Fan/Filter Unit, provides a balanced stream of ions to the work area below to neutralize static charge and prevent electro-static discharge; 22" bar shown installed on 2' x 2' FFU.
  • FFU Mounting Frame; Stainless Steel
    Stainless steel Fan Filter Unit (FFU) mounting frame supports FFU on drywall or other rigid ceiling material, viewed from above ceiling panel (FFU not included).
  • Challenge Port; for Fan/Filter Unit
    Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown mounted on SS FFU, order separately).
  • Night Service Saves Energy, Extends Filter Life!
    Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
  • Filter Replacement Alarm
    The filter replacement alarm monitors filter backpressure and issues an alarm when filter needs replaced (requires selection of fan filter unit with challenge port, order separately).
  • Fan Filter Unit Control System
    Provides room-by-room monitoring and control of Smart WhisperFlow FFUs to maintain target pressure differentials for ISO classification; temperature, humidity and particle monitoring and data logging, as well as dynamic fan set-point control, also available.
  • Power Distribution Modules for Cleanroom FFUs and Lights
    UL-listed power distribution modules include all breakers, transformers and other electrical components for FFU/light connections; allows fast addition or relocation of FFUs or lights without the need for rewiring.
  • Filter Covers Allow Ceiling Wash-Down
    Ceiling panel covers allow wash-down and sterilization of cleanroom walls and ceilings without damage to filter medium; requires BioSafe glass or stainless steel wall panels, which stand up to biocides.

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Manuals & Resources

Manuals & Resources

Blog Post

Air Shower Protection for Cannabis Grow Rooms

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