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Terra Part #Price Ships in
120 V Powder-Coated Steel 30" x 24" HEPA Top Side 6601-3024-H $1,410 5-9 Days2
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120 V Powder-Coated Steel 30" x 36" HEPA Top Side 6601-3036-H $1,464 5-9 Days3
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120 V Powder-Coated Steel 30" x 48" HEPA Top Side 6601-3048-H $1,518 5-9 Days4
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220 V Powder-Coated Steel 30" x 24" HEPA Top Side 6601-3024-H-220 $1,410 5-9 Days5
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220 V Powder-Coated Steel 30" x 36" HEPA Top Side 6601-3036-H-220 $1,464 5-9 Days6
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220 V Powder-Coated Steel 30" x 48" HEPA Top Side 6601-3048-H-220 $1,518 5-9 Days7
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Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
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Product Details
Product Details
  • Available Certified ISO Grade Designs: ISO 5, ISO 6, ISO 7, ISO 8
  • 30" wide fan filter unit provides expanded filtration coverage in a single, streamlined unit
  • Delivers consistent airflow with three speed settings (Low/Medium/High) to simplify air balancing
  • Internal baffling plate and diffuser panel provide quiet and uniform air flow across the filter face
  • Quiet, low-vibration FFU design; operates at 49 dBA
  • Performance Data and Submittals
  • Meets IEST Recommended Practices
  • HEPA (High-Efficiency Particulate Air) filters are rated 99.99% efficient at removing particles ≥ 0.3 microns
  • Provides years of no-maintenance, 24/7 operation (depending on air quality)
  • 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 maximizes filtration coverage while maintaining efficient ceiling space utilization
  • 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

Certified ISO Grade Design: ISO 5

RoHS: Compliant

Unit of Measure: of 1

Marks & Listings: CE, UL, ULC

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

Learn More: 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 pertussis : Whooping cough
  • Mycoplasma pneumoniae: Pneumonia
  • Chlamydia pneumoniae: Bronchitis
  • Chlamydia 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
  • Alcaligenes: Opportunistic infections
  • Streptococcus pyogenes: Scarlet fever
  • Mycobacterium Tuberculosis: Tuberculosis

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

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.

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.

Clean and Durable Powder Coat Finish

Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.

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).

Highest Standards For Electronic Components

Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.

Catalog of CE-Marked Products

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

Products Compliant With Your ISO Rating

High-capacity, durable, ISO-compliant system rated for thousands of operating hours.
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