Fan Filter Units

277 products meet your criteria.

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  1. Stocked
    WhisperFlow® Fan Filter Units
    From
    As low as $948
    Some ship in 0 - 2 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    2 Voltage2 Material3 Size2 Filter2 Filter Replacement Access2 ISO Class

    • Available ISO Ratings: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    ISO Class: ISO 5, ISO 4
  2. Stocked
    HEPA Filters
    Group of 7 products
    6601-PP-64
    From
    As low as $405
    Some ship in 0 - 2 days
    ISO 5 IconISO 5 IconStockedStockedULus ListedULus ListedVolume DiscountVolume DiscountNew Lower Price DiscountNew Lower Price Discount
    6 Size2 Filter Frame Material1 Filter Type1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 99.99% efficient at filtering particles down to 0.3 micrometers
    • Features a lightweight and economical aluminum frame
    • Compatible with all industry-standard FFU brands in 2' x 2', 2' x 3' and 2' x 4' sizes
    • Certified and tested to UL 900 for fire safety
    Size: 2'x4', 2'x3', 2'x2', 16" x 24", 16" x 48", 16" x 36"
    Filter Frame Material: Aluminum, 304 Stainless Steel
    Filter Type: HEPA
    ISO Class: ISO 5
  3. Stocked
    Smart® WhisperFlow® Fan Filter Units (EC Motor)
    From
    As low as $1,460
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    1 Voltage2 Material3 Size2 Filter2 Filter Replacement Access2 ISO Class2 Full Seam Welded

    • Available ISO Ratings: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
    • EC brushless motors for quiet, energy-efficient operation and infinitely variable speed control
    • Provides much wider flow range, 110 to 900 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
    ISO Class: ISO 5, ISO 4
    Full Seam Welded: No, Yes
  4. Smart® Walkable Fan Filter Units
    From
    As low as $1,581
    Some ship in 5 - 9 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowISO 4 IconISO 4 Icon
    1 Voltage2 Material3 Size1 Filter2 Filter Replacement Access2 ISO Class

    Voltage: 120/230 V
    Material: Stainless Steel, Powder-Coated Steel
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Room-Side, Top Side
    ISO Class: ISO 5, ISO 4
  5. Stocked
    Reverse-Flow Fan Filter Units
    From
    As low as $1,839
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    3 Voltage2 Material3 Size2 Filter2 Filter Replacement Access1 FFU Type2 ISO Class

    • Available ISO Ratings: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
    • 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, 230 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x3', 2'x2', 2'x4'
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side, Room-Side w/ Dust Collector Pan
    FFU Type: Ductless
    ISO Class: ISO 5, ISO 4
  6. Stocked
    Fan Filter Units with Integrated LED Light and Ionizers
    From
    As low as $2,241
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoWhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked
    2 Voltage1 Material2 Configuration3 Size1 Filter1 Filter Replacement Access1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    ISO Class: ISO 5
  7. Stocked
    Explosion-Proof Fan Filter Units
    Group of 6 products
    6601-PP-12
    From
    As low as $5,938
    Some ship in 1 - 3 days
    ULus ListedULus ListedExplosion Proof IconExplosion Proof IconBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage1 Material3 Size1 Filter2 Filter Replacement Access1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    Filter Replacement Access: Room-Side, Top Side
    ISO Class: ISO 4
  8. Stocked
    Explosion-Proof Fan Filter Units, Reverse Flow
    Group of 6 products
    6601-PP-19
    From
    As low as $6,167
    Some ship in 1 - 3 days
    ULus ListedULus ListedCE Mark LogoCE Mark LogoStockedStockedExplosion Proof IconExplosion Proof IconWhisperFlowWhisperFlowBioSafe classic logoBioSafe classic logoISO 5 IconISO 5 Icon
    2 Voltage1 Material3 Size1 Filter2 Filter Replacement Access1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    ISO Class: ISO 4
  9. Stocked
    Heated Fan Filter Units
    From
    As low as $2,375
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked
    2 Voltage1 Material3 Size1 Filter2 Filter Replacement Access1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    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
    ISO Class: ISO 4
  10. Stocked
    Narrow WhisperFlow® Fan Filter Units
    Group of 8 products
    6601-PP-17
    From
    As low as $1,278
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    2 Voltage2 Material4 Size1 Filter1 Filter Replacement Access1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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", 1'x1'
    Filter: HEPA
    Filter Replacement Access: Top Side
    ISO Class: ISO 5
  11. Stocked
    High-Capacity WhisperFlow® Portable HEPA Filtration System
    Group of 2 products
    6601-PP-27
    From
    As low as $2,640
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage1 Material1 Filter2 UV Lamp1 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    ISO Class: ISO 5
  12. Stocked
    Portable Horizontal Flow Fan Filter Module
    Group of 4 products
    6601-PP-28
    From
    As low as $1,999
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowULus LogoULus LogoISO 5 IconISO 5 IconStockedStocked
    2 Configuration1 ISO Class2 Battery Powered

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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
    ISO Class: ISO 5
    Battery Powered: No, Yes
  13. Stocked
    Low Profile Fan Filter Units
    From
    As low as $1,333
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    2 Voltage2 Material7 Size2 Filter1 Filter Replacement Access2 ISO Class2 UL-Listed

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • 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, 220 V
    Material: Powder-Coated Steel, Stainless Steel
    Size: 2'x4', 2'x3', 2'x2', 16" x 48", 16" x 24", 1'x1', 16" x 36"
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side
    ISO Class: ISO 5, ISO 4
    UL-Listed: No, Yes
  14. External UPS Battery System for FFU
    Group of 2 products
    1529-PP-03
    From
    As low as $1,109
    Some ship in 10 - 15 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoStockedStocked
    1 Voltage2 Material2 ISO Class

    • Portable battery system mounts on top of 2'x4' FFU or retrofits to existing FFU
    • Handy and convenient Uninterruptible Power Supply (UPS) provides power when and where you need it
    • Suitable for mobile transport or applications that require protection from unexpected power outages
    • Protects against all types of power problems including blackouts, brownouts, surges and line noise
    • Compatible with cleanroom FFU's, laminar flow hoods, mobile cleanroom cabinets, and more
    Voltage: 120 V
    Material: Powder-Coated Steel, Stainless Steel
    ISO Class: ISO 6, ISO 5
  15. Stocked
    Laminar Flow Diffusers with HEPA/ULPA Filters
    From
    As low as $509
    Some ship in 1 - 3 days
    StockedStockedISO 4 IconISO 4 Icon
    1 Material3 Size1 Filter2 Filter Replacement Access1 ISO Class2 Adjustable Damper

    • Available ISO Ratings: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
    • Terminal housing connects to remote air supply to provide HEPA/ULPA filtered airflow
    • Terminal diffuser with adjustable damper allows for easy access of cleanroom air flow adjustments; can be increased or decreased
    • Two grille material: standard terminal diffuser with aluminum grille or adjustable damper with white mesh filter grille and room side challenge port
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) terminal housing
    • Economical filter unit includes internal baffling and diffuser panel for quiet, uniform air flow
    Material: Powder-Coated Steel
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Top Side, Room-Side
    ISO Class: ISO 5
    Adjustable Damper: No, Yes
  16. Stocked
    Filter Replacement Alarm System for Fan Filter Units
    Group of 2 products
    6601-PP-30
    From
    As low as $1,496
    Some ship in 1 - 3 days
    StockedStockedISO 6 IconISO 6 Icon
    2 Voltage

    • Available ISO Ratings: ISO 6, ISO 7, ISO 8
    • 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. ULus ListedULus ListedWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 IconQuick Ship +Quick Ship +

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • Low profile 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
  18. Stocked
    Smart® EC Fan Filter Unit With Integrated UPS Battery System
    Group of 2 products
    6601-PP-33
    From
    As low as $2,903
    Some ship in 1 - 3 days
    BioSafe classic logoBioSafe classic logoULus ListedULus ListedWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage2 Material1 Size2 Filter1 Filter Replacement Access2 ISO Class

    • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
    • Energy efficient Smart FFU with integrated UPS battery system arrives fully assembled, ready for use
    • High-capacity, durable, ISO-compliant system rated for thousands of operating hours
    • 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, ULPA
    Filter Replacement Access: Top Side
    ISO Class: ISO 5, ISO 4
  19. Stocked
    Smart® Control Panels for Fan Filter Unit (FFU) Systems
    From
    As low as $5,323
    Some ship in 1 - 3 days
    ISO 6 IconISO 6 IconStockedStocked
    1 Data Logging4 Control Level1 ISO Class4 Max # of Rooms5 Max # of FFUs4 Display2 FFU Control

    • Available ISO Ratings: ISO 6, ISO 7, ISO 8
    • 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 2, Tier 1, Tier 3, Tier 4
    ISO Class: ISO 6
    Max # of Rooms: 6, 5, 12, 16
    Max # of FFUs: 100, N/A, 50, 120, 200
    Display: 3.5", 2.4", 7", 12.1"
    FFU Control: Remote, N/A
  20. Stocked Quick Ship+
    Germicidal UV Illuminator; for Modular Cleanrooms, Universal, 120 V (3800-26)
    $2,816
    Usually ships in 1 - 3 days
    StockedStockedISO 6 IconISO 6 IconQuick Ship +Quick Ship +

    • Available ISO Ratings: ISO 6, ISO 7, ISO 8
Page 1 of 2

277 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
  • Learn More: Filter Fan Units Prevent Infection
  • Submittals and Product Data -WhisperFlow Fan Filter Units
  • Learn More: Filter Fan Units
  • 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).

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.

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).

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

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.

Filter Fan Unit Product Lines

  • Terra Universal WhisperFlow® Hoods and Filter Fan Units
  • Portable HEPA Filtration System Watch Terra's Portable HEPA Filtration System Video
  • Watch Terra's Video on a HEPA Filtered Laminar Flow Cabinet Smoke Test
  • 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
Portable HEPA Filtration System
Technical Resources
blog post
Air Shower Protection for Cannabis Grow Rooms

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