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Terra Part #PriceShips in
120 VPowder-Coated SteelIntegrated LED and Ionizer2'x2'HEPARoom-Side 6601-22-HRLI 76038 $2,5101-3 Days2
Stocked
120 VPowder-Coated SteelIntegrated LED and Ionizer2'x3'HEPARoom-Side 6601-23-HRLI 76041 $2,5501-3 Days3
Stocked
120 VPowder-Coated SteelIntegrated LED and Ionizer2'x4'HEPARoom-Side 6601-24-HRLI 76043 $2,5911-3 Days4
Stocked
120 VPowder-Coated SteelIntegrated LED Light2'x2'HEPARoom-Side 6601-22-HRL 76025 $1,5821-3 Days5
Stocked
120 VPowder-Coated SteelIntegrated LED Light2'x3'HEPARoom-Side 6601-23-HRL 76028 $1,6221-3 Days6
Stocked
120 VPowder-Coated SteelIntegrated LED Light2'x4'HEPARoom-Side 6601-24-HRL 76030 $1,6631-3 Days7
Stocked
220 VPowder-Coated SteelIntegrated LED and Ionizer2'x2'HEPARoom-Side 6601-22-HRLI-220 76040 $2,8075-5 Days8
220 VPowder-Coated SteelIntegrated LED and Ionizer2'x3'HEPARoom-Side 6601-23-HRLI-220 76042 $2,8485-5 Days9
220 VPowder-Coated SteelIntegrated LED and Ionizer2'x4'HEPARoom-Side 6601-24-HRLI-220 76044 $2,8885-5 Days10
220 VPowder-Coated SteelIntegrated LED Light2'x2'HEPARoom-Side 6601-22-HRL-220 76026 $1,8795-5 Days11
220 VPowder-Coated SteelIntegrated LED Light2'x3'HEPARoom-Side 6601-23-HRL-220 76029 $1,9195-5 Days12
220 VPowder-Coated SteelIntegrated LED Light2'x4'HEPARoom-Side 6601-24-HRL-220 76031 $1,9595-5 Days13
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Product Details

• Turnkey system combines HEPA-filtered fan unit, LED light and ion bar

• Easily installs into cleanroom, laminar flow hood or HEPA-filtered storage cabinet

• Minimizes cleanroom service downtime with room-side-replaceable fan filter units

• 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

• WhisperFlow baffling technology supports uniform air speed across the filter face, ensuring laminar airflow

• Three speed settings simplify air balancing

• Low-profile design allows cleanroom installation inside rooms with standard 9-foot ceilings

• Meets IEST Recommended Practices

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

• Speak with a Terra sales associate for recommendations on quantities to meet specified requirements

• Quiet, low-vibration design: only 49 dBA, measured 30" from filter face @ 90 FPM

• Provides an average airflow velocity of 90+ feet per minute and airflow of 640+ CFM under filter load at Medium speed setting

• Choose from cold rolled steel or all stainless steel housing

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

• HEPA (High-Efficiency Particulate Air) filters are rated 99.99% efficient at removing particles ≥ 0.3 microns

• ULPA (Ultra-Low Penetration Air) filters are rated 99.999% efficient at removing particles ≥ 0.12 microns

• Provides years of no-maintenance, 24/7 operation (depending on air quality)

• Motor: 1/4 HP Direct drive, thermally protected with automatic overload reset

• Forward-curved centrifugal fans

• All FFU data is based on a standalone unit using 1” prefilter and clean filters

• Includes a MERV 7 pre-filter

• Data will vary depending on filter media and configurations with other products/systems, such as ductwork or hoods.

Unit of Measure: of 1

Marks & Listings: CE

Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units

Features & Benefits

Features and Benefits

Filter Fan Units Prevent Infection

Did You Know?
HEPA/ULPA Filters Do More Than Meet ISO Requirements - they also prevent infection.

Most cleanroom professionals understand that HEPA and ULPA filters capture contaminants that degrade particle-sensitive samples. But they also help remove bacteria, mold spores, and many viruses 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
  • SARS-CoV-2: Coronavirus (COVID-19)
  • Escherichia coli: Gastrointestinal infection
  • Bacillus anthracis : Anthrax
  • Aspergillus brasiliensis: Sinus infections
  • Francisella tularensis: Tularemia
  • Bordetella pertusis : Whooping cough
  • Mycoplasma pneumoniae: 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
HEPA/ULPA filtration diagram with examples of filtered contaminants

Protect Against Contaminants and Pathogens

HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures

Airflow Uniformity Improves Laminar Flow

Non-uniform air speeds produce turbulence that can recirculate particles into the air stream. Unique WhisperFlow® FFU baffling system and anodized diffuser plate promotes uniform laminar airflow to minimize turbulence and effectively carry away contaminating particles.

WhisperFlow Quiet Operation Reduces Distracting Background Noise

Exposure to loud noises can lower the ability to focus on work and listen selectively, which may also lead to safety issues. Typical AC units can be annoyingly loud, measuring in the range of 70 dB (comparable to a vacuum cleaner). Terra’s WhisperFlow design produces far lower noise levels for a quiet environment comparable to a library. At 90 ft/min output, units measure under 50 dB from only 1 ft away (roughly 75% quieter than 70dB).

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 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.
  • 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.
  • 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).
  • 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.
  • 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).
  • 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.
  • 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.
  • Challenge Port for Fan Filter Unit
    Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown with optional pressure gauge; must be ordered with FFU).
  • Replacement Filters
    Purchase replacement filters ahead of time to prevent costly operational interruptions and avoid damage to fan blowers caused by excessive backpressure from long overdue filter replacements.

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Manuals & Resources

Manuals & Resources

Blog Post

Air Shower Protection for Cannabis Grow Rooms

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