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Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan Filter Units,Fan/Filter Units
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WhisperFlow® Fan/Filter Units

Stocked CE Mark Logo ULus Logo WhisperFlow
Manufactured By: Terra Universal
Product Group No: 6601-PP-15
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Powder-Coated Steel 2' x 3' ULPA 240 V Aluminum $9641-3 Days Stocked
Powder-Coated Steel 2' x 3' ULPA 120 V Aluminum $8761-3 Days Stocked
Powder-Coated Steel 2' x 3' HEPA 240 V Aluminum $8541-3 Days Stocked
Powder-Coated Steel 2' x 3' HEPA 120 V Aluminum $7761-3 Days Stocked
Powder-Coated Steel 2' x 4' ULPA 240 V Aluminum $9641-3 Days Stocked
Powder-Coated Steel 2' x 4' ULPA 120 V Aluminum $8761-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 240 V Aluminum $8541-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 120 V Aluminum $7761-3 Days Stocked
Powder-Coated Steel 2' x 2' ULPA 240 V Aluminum $9641-3 Days Stocked
Powder-Coated Steel 2' x 2' ULPA 120 V Aluminum $8761-3 Days Stocked
Powder-Coated Steel 2' x 2' HEPA 240 V Aluminum $8541-3 Days Stocked
Powder-Coated Steel 2' x 2' HEPA 120 V Aluminum $7761-3 Days Stocked
Stainless Steel 2' x 3' HEPA 120 V 304 Stainless Steel $1,3761-3 Days Stocked
Stainless Steel 2' x 4' HEPA 120 V 304 Stainless Steel $1,3761-3 Days Stocked
Stainless Steel 2' x 2' HEPA 240 V 304 Stainless Steel $1,5141-3 Days Stocked
Stainless Steel 2' x 2' HEPA 120 V 304 Stainless Steel $1,3761-3 Days Stocked
Powder-Coated Steel 2' x 2' ULPA 240 V Aluminum $1,1881-3 Days Stocked
Powder-Coated Steel 2' x 3' ULPA 240 V Aluminum $1,1881-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 240 V Aluminum $1,0561-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 120 V Aluminum $8971-3 Days Stocked
Powder-Coated Steel 2' x 3' HEPA 120 V Aluminum $7765-9 Days
Powder-Coated Steel 2' x 2' HEPA 120 V Aluminum $8661-3 Days Stocked
Powder-Coated Steel 2' x 3' HEPA 120 V Aluminum $8661-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 120 V Aluminum $8661-3 Days Stocked
Powder-Coated Steel 2' x 4' HEPA 120 V Aluminum $6371-3 Days Stocked
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Features & Benefits
Available Accessories
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Product Details

Designed in the USA

• 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 50 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

• 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)

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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. 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
Fan Filter Units Prevent Infection

Fan Filter Units Prevent Infection

Cleanroom fan filter units prevent transmission of airborne bacterial, viral and fungal organisms including C. diff, MRSA, E. Coli, Actinomyces, Meningitis and Tularemia.
Quick-Connect Cleanroom Component Fittings

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.
Fan Filter Unit Air Flow Testing

Air Flow Uniformity

Unique WhisperFlow® FFU baffling system and anodized diffuser plate promote uniform air speed across the filter face.
Fan Filter Unit with Vapor-Removal and Sanitizing Module

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).

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Fan Filter Unit Power Cord Adapter
    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 Installed on Cleanroom Fan/Filter Unit
    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.
  • Fan Filter Unit Mounting Frame, for Ceiling Installation
    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 Swtich for Clean Room Fan Filter Units
    Night Service Switch 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 for Fan Filter Unit
    Filter Replacement Alarm
    The Filter Replacement Alarm monitors filter backpressure and issues an alarm when fitler needs replaced (requires selection of Fan Filter Unit with Challenge Port, order separately).
  • Fan Filter Unit Control System
    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, Lights
    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.
  • BioSafe Modular Cleanroom Sterilization and Decontamination
    Filter Covers Allow Ceiling Wash-Down
    Ceiling Filter Fan Unit (FFU) 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).

Manuals & Resources

Manuals & Resources

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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