• Unit of Measure: of 1
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WhisperFlow® Fan Filter Units
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Manufactured By: Terra Universal
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Product Details
• 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
• 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 InfectionDid You Know?
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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.
Gel-Filled Channel on Room-Side Replaceable Filter
Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.
Easy-Release Filter Clamp on Room-Side Replaceable FFU
Easy-release clamps rotate to release filter on Room-Side Replaceable Fan Filter Units, simplifying filter servicing without the need for a cleanroom shut-down.
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).
Eliminate Contaminants and Pathogens
HEPA and ULPA filters capture many bacteria, viruses, and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures
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). -
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. -
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).
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Manuals & Resources
Manuals & Resources
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