Fan Filter Units

254 products meet your criteria.

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  1. Stocked
    WhisperFlow® Fan Filter Units
    From
    $812
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStocked
    2 Voltage2 Material3 Size2 Filter2 Filter Replacement Access

    • Cleanroom FFU provides avg velocity of 90+ FPM, airflow of 640+ CFM at Medium speed
    • Three speed settings (Low/Medium/High) simplify air balancing
    • Internal baffling plate and diffuser panel provide quiet and uniform air flow across the filter face
    • Quiet, low-vibration FFU design: only 49 dBA, measured 30" from filter face @ 90 FPM
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) fan filter units
    Voltage: 120 V, 240 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x4', 2'x3', 2'x2'
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side, Room-Side
  2. Stocked
    Smart® WhisperFlow® Fan Filter Units (EC Motor)
    From
    $1,387
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStocked
    1 Voltage2 Material3 Size2 Filter2 Filter Replacement Access2 Full Seam Welded

    • EC brushless motors for quiet, energy-efficient operation and infinitely variable speed control
    • Provides much wider flow range, 110 to 1117 CFM, ideal for applications with high static pressure
    • Connect to automatic smart console for centralized fan control and cleanroom pressure balancing
    • Low-heat and low-noise production only 40 dBA, measured 12" from filter face @ 90 FPM
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) fan filter units
    Voltage: 120/230 V
    Material: Stainless Steel, Powder-Coated Steel
    Size: 2'x3', 2'x2', 2'x4'
    Filter: HEPA, ULPA
    Filter Replacement Access: Room-Side, Top Side
    Full Seam Welded: No, Yes
  3. Stocked
    Explosion-Proof Fan Filter Units
    From
    $4,422
    Some ship in 1 - 3 days
    ULus ListedULus ListedExplosion Proof IconExplosion Proof IconBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStocked
    1 Voltage1 Material3 Size2 Filter2 Filter Replacement Access

    • Explosion-proof FFU meets NEC requirements for Class I/Class II, Division 1 Hazardous locations
    • Non-sparking motor, mounted in a cast-iron, explosion-proof housing
    • Cleanroom FFU provides avg velocity of 90+ FPM, airflow of 640+ CFM
    • Internal baffling plate and diffuser panel provide quiet and uniform air flow across the filter face
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) fan filter units
    Voltage: 120/240 V
    Material: Stainless Steel
    Size: 2'x2', 2'x3', 2'x4'
    Filter: ULPA, HEPA
    Filter Replacement Access: Room-Side, Top Side
  4. Stocked
    Explosion-Proof Fan Filter Units, Reverse Flow
    From
    $4,753
    Some ship in 1 - 3 days
    ULus ListedULus ListedCE Mark LogoCE Mark LogoStockedStockedExplosion Proof IconExplosion Proof IconWhisperFlowWhisperFlowBioSafe classic logoBioSafe classic logo
    2 Voltage1 Material3 Size1 Filter2 Filter Replacement Access

    • Exhaust flow fan filter unit convert any room into a negative pressure isolation/containment room
    • Explosion-proof FFU meets NEC requirements for Class I/Class II, Division 1 Hazardous locations
    • Non-sparking motor, mounted in a cast-iron, explosion-proof housing
    • Mounts into ceiling bay to remove sub-micron particles and provide safe exhaust
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) fan filter units
    Voltage: 120 V, 120/240 V
    Material: Stainless Steel
    Size: 2'x4', 2'x3', 2'x2'
    Filter: ULPA
    Filter Replacement Access: Top Side, Room-Side w/ Dust Collector Pan
  5. Stocked
    WhisperFlow® Reverse-Flow Fan Filter Units
    From
    $1,447
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedWhisperFlowWhisperFlowStockedStocked
    4 Voltage2 Material3 Size2 Filter2 Filter Replacement Access1 FFU Type

    • Exhaust flow fan filter units convert any room into a negative pressure isolation/containment room
    • Filtered exhaust system also ideal for containing dust generated during maintenance or construction
    • Mounts into ceiling bay to remove sub-micron particles and provide safe exhaust
    • Medical grade filters are leak tested in accordance with IEST standards and meet UL 900
    • PSC variable speed motor provides precise, fully adjustable airflow control
    Voltage: 120 V, 240 V, 115 V, 230 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x4', 2'x3', 2'x2'
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side, Room-Side w/ Dust Collector Pan
    FFU Type: Ductless
  6. Stocked
    Fan Filter Units with Integrated LED Light and Ionizers
    From
    $1,661
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoWhisperFlowWhisperFlowStockedStocked
    2 Voltage1 Material2 Configuration3 Size1 Filter1 Filter Replacement Access

    • Turnkey system combines HEPA-filtered fan unit, LED light and ion bar
    • Easily installs into cleanroom, laminar flow hood or HEPA-filtered storage cabinet
    Voltage: 120 V, 220 V
    Material: Powder-Coated Steel
    Configuration: Integrated LED Light, Integrated LED and Ionizer
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Room-Side
  7. CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStocked
    1 Voltage2 Material1 Size1 Filter1 Filter Replacement Access

    • Energy efficient Smart FFU with integrated UPS battery system arrives fully assembled, ready for use
    • Handy and convenient Uninterruptible Power Supply (UPS) provides power when and where you need it
    • Battery system provides approximately 1-2 hr runtime depending on FFU speed setting
    • EC motor offers high performance, low energy consumption, and low noise levels (40 dB)
    • Suitable for mobile transport or applications that require protection from unexpected power outages
    Voltage: 120/230 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x4'
    Filter: HEPA
    Filter Replacement Access: Top Side
  8. Stocked
    Low Profile Fan Filter Units
    From
    $989
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowStockedStocked
    1 Voltage2 Material7 Size2 Filter1 Filter Replacement Access

    • Low profile 8"H fan filter units are ideal for cleanrooms with restricted height areas
    • High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3µm particle diameter
    • Variable speed control dial for precise air flow control
    • FDA-approved silicone sealant prevents air leakage without harmful outgassing chemicals
    • Backward-curved fan for optimized efficiency
    Voltage: 120 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x4', 2'x3', 2'x2', 1'x1', 16" x 48", 16" x 36", 16" x 24"
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side
  9. Heated Fan Filter Units
    From
    $1,877
    Some ship in 10 - 14 days
    WhisperFlowWhisperFlow
    2 Voltage1 Material3 Size1 Filter2 Filter Replacement Access

    Voltage: 120 V, 240 V
    Material: Powder-Coated Steel
    Size: 2'x2', 2'x3', 2'x4'
    Filter: ULPA
    Filter Replacement Access: Top Side, Room-Side
  10. Stocked
    Narrow WhisperFlow® Fan Filter Units
    From
    $989
    Some ship in 0 - 2 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStocked
    2 Voltage2 Material3 Size1 Filter1 Filter Replacement Access

    • 16" wide narrow fan filter unit fits in space-saving enclosures for a smaller footprint
    • Cleanroom FFU provides avg velocity of 90+ FPM, airflow of 640+ CFM at Medium speed
    • Three speed settings (Low/Medium/High) simplify air balancing
    • Internal baffling plate and diffuser panel provide quiet and uniform air flow across the filter face
    • Quiet, low-vibration FFU design: only 49 dBA, measured 30" from filter face @ 90 FPM
    Voltage: 120 V, 240 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 16" x 48", 16" x 24", 16" x 36"
    Filter: HEPA
    Filter Replacement Access: Top Side
  11. Stocked
    WhisperFlow® Portable HEPA Filtration System
    From
    $4,644
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowStockedStocked
    1 Voltage1 Material1 Filter2 UV Lamp

    • HEPA filters help capture many bacteria and viruses such as COVID-19 to reduce risk of infection
    • Portable isolation room filtration system suitable for negative pressure or recirculation
    • Medical grade air filtration system quickly converts any room to a negative pressure isolation room
    • Mobile, self-contained, high capacity air purifier with small footprint easily rolls between rooms
    • Clean Air Delivery Rate (CADR) of 800 CFM replaces air 5x per hr in a room 1,000 sqft x 9 ft high
    Voltage: 120 V
    Material: Powder-Coated Steel
    Filter: HEPA
    UV Lamp: Included, N/A
  12. Stocked
    Laminar Flow Diffusers HEPA/ULPA Filters
    From
    $555
    Some ship in 1 - 3 days
    StockedStocked
    1 Voltage1 Material3 Size1 Filter2 Filter Replacement Access

    • Laminar Flow Diffuser connects to remote air supply to provide HEPA/ULPA filtered airflow
    • No built-in motor; 12" Diameter x 2"H collar allows for connection to external air supply
    • Economical filter unit includes internal baffling and diffuser panel for quiet, uniform air flow
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) laminar flow diffusers
    Voltage: None
    Material: Powder-Coated Steel
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Top Side, Room-Side
  13. Stocked
    Portable Horizontal Flow Fan Filter Module
    From
    $1,555
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowULus LogoULus LogoStockedStocked
    2 Configuration

    • HEPA filters help capture many bacteria and viruses such as COVID-19 to reduce risk of infection
    • Portable base stand safely mounts cleanroom FFU’s above floor for horizontal laminar airflow
    • Horizontal flow wall module is ideal when ceiling space is unavailable or overhead system unsuitable
    • Versatile horizontal FFU system can be customized for compatibility with most Terra FFU’s
    • Includes adjustable leveling feet for optimal stability, optional casters for increased mobility
    Configuration: 1 FFU, 2 FFU's
  14. Stocked
    Replacement Filters for Fan Filter Units
    From
    $144
    Some ship in 1 - 3 days
    StockedStocked
    8 Size5 Filter Type

    • Find the right replacement HEPA/ULPA filter for your FFU (Fan-Filter Unit)
    Size: 2'x4', 2'x3', 2'x2', 16" x 24", 16" x 36", 16" x 48", 19.5" x 19.5", 14" x 19.5"
    Filter Type: HEPA, ULPA, HEPA, RSR, ULPA, RSR, MERV 7 Pre-Filter
  15. Stocked
    Fan Filter Unit Mounting Frames
    From
    $335
    Some ship in 1 - 3 days
    StockedStocked
    1 Material3 Size

    Material: Stainless Steel
    Size: 2'x2', 2'x3', 2'x4'
  16. Stocked
    Filter Replacement Alarm System for Fan Filter Units
    From
    $1,121
    Some ship in 1 - 3 days
    StockedStocked
    2 Voltage

    • Filter replacement alarm keeps your fan filter units working safely and efficiently
    • 1 Filter Replacement Alarm unit covers for all FFUs in your cleanroom
    • Receive automatic replacement alerts to avoid costly and unexpected operational interruptions
    • Prevent electrical/fire hazards caused by overworked motors pushing against overloaded HEPA filters
    • Control differential pressure set-point to adjust frequency of filter replacement
    Voltage: 120 V, 240 V
  17. StockedStocked
    1 Voltage1 Lighting2 Panel Size

    • Cleanroom LED panel with built-in emergency battery helps meet municipal/fire safety requirements
    • When power is cut off, the battery powers the cleanroom LED panel
    • UL recognized emergency driver allows LED panel to be used for both normal and emergency operation
    • Includes test switch, battery-charge status indicator, and programmable time indicator light
    • Programmable time indicator light signals when cleanroom is ready for use after a minor shutdown
    Voltage: 120/277 V
    Lighting: LED
    Panel Size: 2' x 2', 2' x 4'
  18. Stocked
    Smart® Control Panels for Fan Filter Unit (FFU) Systems
    From
    $4,353
    Some ship in 0 - 2 days
    StockedStocked
    1 Data Logging4 Control Level4 Max # of Rooms5 Max # of FFU's4 Display2 FFU Control

    • Smart cleanroom control panel intelligently monitors and controls clean rooms and facilities
    • Connects to EC FFUs for fan control plus monitors differential pressure, temperature, and/or RH
    • Plug-and-play design is field configurable to match your facility layout and needs
    Data Logging: Yes
    Control Level: Tier 1, Tier 2, Tier 3, Tier 4
    Max # of Rooms: 5, 6, 12, 16
    Max # of FFU's: 50, 100, 120, 200, N/A
    Display: 2.4", 3.5", 7", 12.1"
    FFU Control: Remote, N/A
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254 products meet your criteria.

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FFU FAQs, FFUs Prevent Infection, How many FFUs Do I Need?
  • Calculating Clean Room Cleanliness: How many FFUs and Lights?
  • Explosion-Proof Fan Filter Unit (FFU)
  • Environmental Control Modules (ECM) FFUs
  • Filter Fan Units Prevent Infection
  • Submittals and Product Data -WhisperFlow Fan Filter Units
  • FFU FAQ
  • UL Listed Cleanroom Control Systems

Fan Filter Unit Features and Benefits

Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity

Unlike other manufacturers, Terra’s FFUs include a unique perforated panel beneath the filter, acting as a shower head, to guarantee filter protection and laminar air flow uniformity which prevents localized air swirling, particle build-up and turbulence.

Full Range of Designs, Configurations!

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

COVID-19 Infection Control

Terra’s in-stock ceiling-mounted reverse-flow ducted filter fan units convert any space into a negative pressure isolation room

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.

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.

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Fan Filter Units

  • Terra Universal WhisperFlow® Hoods and Filter Fan Units
  • Fan Filter Unit with Vapor-Removal and Sanitizing Module Full Range of Designs, Configurations!
  • COVID-19 Contamination Control Products by Terra Universal
  • Ducted Reverse-Flow Fan Filter Unit COVID-19 Infection Control
  • EC HEPA Fan Filter Unit Smart WhisperFlow Fan Filter Unit with EC Motor
  • Room Side Replaceable Fan Filter Units (FFUs) Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)
  • Stainless Steel WhisperFlow Fan and Filter Units Stainless Steel WhisperFlow Fan and Filter Units, 2' x 4'
  • 2' x 4' Ducted HEPA Filter Unit Ducted HEPA Filter Unit, 2' x 4'
  • Cleanroom HEPA or ULPA Fan Filter Unit WhisperFlow Cleanroom HEPA Fan Filter Unit

Technical Resources

blog post

Air Shower Protection for Cannabis Grow Rooms

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