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Fan Filter Units

305 products meet your criteria.

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  1. WhisperFlow® Fan Filter Units
    Stocked
    WhisperFlow® Fan Filter Units
    From
    As low as $598
    Some ship in 0 - 2 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    2 Voltage2 Material2 ISO Rated Air Cleanliness7 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
    ISO Rated Air Cleanliness: ISO 5, ISO 4
    Size: 2'x4', 2'x3', 2'x2', 16" x 48", 16" x 24", 16" x 36", 1'x1'
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side, Room-Side
  2. Smart® WhisperFlow® Fan Filter Units (EC Motor)
    Stocked
    Smart® WhisperFlow® Fan Filter Units (EC Motor)
    From
    As low as $1,048
    Some ship in 0 - 2 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    1 Voltage2 Material2 ISO Rated Air Cleanliness3 Size2 Filter2 Filter Replacement Access2 Full Seam Welded

    • Available Certified ISO Grade Designs: 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: 120/240 V
    Material: Powder-Coated Steel, Stainless Steel
    ISO Rated Air Cleanliness: ISO 5, ISO 4
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA, ULPA
    Filter Replacement Access: Room-Side, Top Side
    Full Seam Welded: No, Yes
  3. Fan Filter Units with Integrated LED Light and Ionizers
    Stocked
    Fan Filter Units with Integrated LED Light and Ionizers
    From
    As low as $1,462
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoWhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked
    2 Voltage1 Material2 Configuration1 ISO Rated Air Cleanliness3 Size1 Filter1 Filter Replacement Access1 Special Application

    • Available Certified ISO Grade Designs: 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, 240 V
    Material: Powder-Coated Steel
    Configuration: Integrated LED Light, Integrated LED and Ionizer
    ISO Rated Air Cleanliness: ISO 5
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Room-Side
    Special Application: Built-In LED + Ionizers
  4. Air Conditioned Smart® WhisperFlow® Fan Filter Units
    Stocked
    Air Conditioned Smart® WhisperFlow® Fan Filter Units
    From
    As low as $3,297
    Some ship in 3 - 5 days
    BioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked
    1 Voltage1 Material1 ISO Rated Air Cleanliness1 Size1 Filter1 Filter Replacement Access1 Full Seam Welded1 BTU

    • Available Certified ISO Grade™ Designs: ISO 5, ISO 6, ISO 7, ISO 8
    • EC brushless motors for quiet, energy-efficient operation and infinitely variable speed control
    • Provides expanded 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
    • Minimize cleanroom service downtime with room-side-replaceable (RSR) fan filter units
    • Note: Requires dedicated 20A circuit
    Voltage: 120 V
    Material: Powder-Coated Steel
    ISO Rated Air Cleanliness: ISO 5
    Size: 2'x4'
    Filter: HEPA
    Filter Replacement Access: Room-Side
    Full Seam Welded: No
    BTU: 8,000
  5. Mini Fan Filter Unit; Reverse-Flow, Low Profile, 12
    WhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked

    • Available Certified ISO Grade Designs: ISO 5, ISO 6, ISO 7, ISO 8
    • Provides particle free exhaust
    • Low profile fan filter units are ideal for cleanrooms with restricted height areas
    • Ultra-Low Particulate Air (ULPA) Filter: 99.999% efficient at 0.12µm particle diameter
    • FDA-approved silicone sealant prevents air leakage without harmful outgassing chemicals
    • All-304 stainless steel construction ensure optimal cleanliness and resistance to cleaning agents
  6. Reverse-Flow Fan Filter Units
    Stocked
    Reverse-Flow Fan Filter Units
    From
    As low as $861
    Some ship in 1 - 3 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedWhisperFlowWhisperFlowStockedStockedISO 4 IconISO 4 Icon
    3 Voltage2 Material2 ISO Rated Air Cleanliness7 Size2 Filter2 Filter Replacement Access1 FFU Type

    • Available Certified ISO Grade Designs: 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
    ISO Rated Air Cleanliness: ISO 4, ISO 5
    Size: 2'x3', 2'x2', 2'x4', 1'x1', 16" x 48", 16" x 36", 16" x 24"
    Filter: ULPA, HEPA
    Filter Replacement Access: Top Side, Room-Side w/ Dust Collector Pan
    FFU Type: Ductless
  7. 4' x 4' Fan Filter Units
    4' x 4' Fan Filter Units
    From
    As low as $2,100
    Some ship in 42 - 48 days
    ISO 5 IconISO 5 IconStockedStocked
    3 Voltage2 Material1 ISO Rated Air Cleanliness1 Size2 Filter Replacement Access1 Full Seam Welded1 UL-Listed5 Airflow Volume

    • Available Certified ISO Grade Designs: ISO 5, ISO 6, ISO 7, ISO 8
    • Available in top-side replaceable and room-side replaceable configurations
    • 90 fpm airflow up to 1.0" wg static pressure levels
    • Electronically commutated (EC) brushless motor provides a quieter sound level than most 2' x 4' fan filter units at 52.3 dBA
    • Backward inclined blower wheel for efficiency in airflow performance
    • Finger guard protected inlet to protect users and the equipment
    Voltage: 277 V, 120 V, 208-240V
    Material: Stainless Steel, Aluminum
    ISO Rated Air Cleanliness: ISO 5
    Size: 4'x4'
    Filter Replacement Access: Top Side, Room-Side
    Full Seam Welded: No
    UL-Listed: Yes
    Airflow Volume: 740 - 1950 CFM, 665-1900 CFM, 665 to 1900 CFM, 740 to 1950 CFM, 665 - 1900 CFM
  8. Smart® Walkable Fan Filter Units
    Smart® Walkable Fan Filter Units
    From
    As low as $1,423
    Some ship in 5 - 9 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowISO 4 IconISO 4 Icon
    1 Voltage2 Material1 ISO Rated Air Cleanliness3 Size1 Filter2 Filter Replacement Access

    • Available Certified ISO Grade Designs: ISO 4, ISO 5, ISO 6, ISO 7, ISO 8
    Voltage: 120/240 V
    Material: Stainless Steel, Powder-Coated Steel
    ISO Rated Air Cleanliness: ISO 5
    Size: 2'x2', 2'x3', 2'x4'
    Filter: HEPA
    Filter Replacement Access: Room-Side, Top Side
  9. Explosion-Proof Fan Filter Units
    Stocked
    Explosion-Proof Fan Filter Units
    From
    As low as $5,344
    Some ship in 0 - 2 days
    ULus ListedULus ListedExplosion Proof IconExplosion Proof IconBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage1 Material1 ISO Rated Air Cleanliness3 Size1 Filter2 Filter Replacement Access1 Special Application

    • Available Certified ISO Grade™ Designs: 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
    ISO Rated Air Cleanliness: ISO 4
    Size: 2'x2', 2'x3', 2'x4'
    Filter: ULPA
    Filter Replacement Access: Room-Side, Top Side
    Special Application: Explosion-Proof
  10. Explosion-Proof Fan Filter Units, Reverse Flow
    Stocked
    Explosion-Proof Fan Filter Units, Reverse Flow
    From
    As low as $5,745
    Some ship in 0 - 2 days
    ULus ListedULus ListedCE Mark LogoCE Mark LogoStockedStockedExplosion Proof IconExplosion Proof IconWhisperFlowWhisperFlowBioSafe classic logoBioSafe classic logoISO 5 IconISO 5 Icon
    1 Voltage1 Material1 ISO Rated Air Cleanliness3 Size1 Filter2 Filter Replacement Access1 Special Application

    • Available Certified ISO Grade™ Designs: 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: 120/240 V
    Material: Stainless Steel
    ISO Rated Air Cleanliness: ISO 4
    Size: 2'x4', 2'x3', 2'x2'
    Filter: ULPA
    Filter Replacement Access: Top Side, Room-Side w/ Dust Collector Pan
    Special Application: Explosion-Proof
  11. Heated Fan Filter Units
    Stocked
    Heated Fan Filter Units
    From
    As low as $2,166
    Some ship in 0 - 2 days
    WhisperFlowWhisperFlowISO 5 IconISO 5 IconStockedStocked
    2 Voltage1 Material1 ISO Rated Air Cleanliness3 Size1 Filter2 Filter Replacement Access1 Special Application

    • Available Certified ISO Grade™ Designs: ISO 5, ISO 6, ISO 7, ISO 8
    • Accelerates parts drying after cleaning and sterilization
    • Suitable for biocompatibility testing or other processes that require ultra clean filtered air at elevated temperatures
    • ULPA Filter for ISO 4 (Class 10) applications: 99.999% efficient Ultra-Low Penetration Air, rated at particles 0.12µm diameter
    • Includes heating element, thermocouple, and insulation to provide safe, controlled heating up to 100 degrees F
    • Note: Requires dedicated 20A circuit
    Voltage: 120 V, 240 V
    Material: Powder-Coated Steel
    ISO Rated Air Cleanliness: ISO 4
    Size: 2'x2', 2'x3', 2'x4'
    Filter: ULPA
    Filter Replacement Access: Top Side, Room-Side
    Special Application: Heated
  12. Narrow WhisperFlow® Fan Filter Units
    Stocked
    Narrow WhisperFlow® Fan Filter Units
    From
    As low as $806
    Some ship in 0 - 2 days
    CE Mark LogoCE Mark LogoULus ListedULus ListedBioSafe classic logoBioSafe classic logoWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    2 Voltage2 Material1 ISO Rated Air Cleanliness4 Size1 Filter1 Filter Replacement Access

    • Available Certified ISO Grade Designs: 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
    ISO Rated Air Cleanliness: ISO 5
    Size: 16" x 48", 16" x 24", 16" x 36", 1'x1'
    Filter: HEPA
    Filter Replacement Access: Top Side
  13. High-Capacity WhisperFlow® Portable Filtration System
    Stocked
    High-Capacity WhisperFlow® Portable Filtration System
    From
    As low as $2,046
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage2 Material2 ISO Rated Air Cleanliness2 Filter2 Pre-Filter2 UV Lamp2 Battery Powered

    • Available Certified ISO Grade™ Designs: ISO 5, ISO 6, ISO 7, ISO 8
    • Terra filters capture bacteria and viruses 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, 316L SS
    ISO Rated Air Cleanliness: ISO 5, ISO 4
    Filter: HEPA, ULPA
    Pre-Filter: MERV 7, Activated Carbon
    UV Lamp: Included, N/A
    Battery Powered: No, Yes
  14. Portable Horizontal Flow Fan Filter Module
    Stocked
    Portable Horizontal Flow Fan Filter Module
    From
    As low as $1,799
    Some ship in 1 - 3 days
    WhisperFlowWhisperFlowULus LogoULus LogoISO 5 IconISO 5 IconStockedStocked
    1 Voltage2 Configuration1 ISO Rated Air Cleanliness1 Filter2 Battery Powered

    • Available Certified ISO Grade™ Designs: 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
    Voltage: 120 V
    Configuration: 1 FFU, 2 FFU's
    ISO Rated Air Cleanliness: ISO 5
    Filter: HEPA
    Battery Powered: No, Yes
  15. Low Profile Fan Filter Units
    Stocked
    Low Profile Fan Filter Units
    From
    As low as $1,253
    Some ship in 0 - 2 days
    WhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    2 Voltage2 Material2 ISO Rated Air Cleanliness7 Size2 Filter1 Filter Replacement Access2 UL-Listed

    • Available Certified ISO Grade Designs: 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, 240 V
    Material: Powder-Coated Steel, Stainless Steel
    ISO Rated Air Cleanliness: ISO 5, ISO 4
    Size: 2'x3', 2'x2', 2'x4', 16" x 48", 16" x 24", 1'x1', 16" x 36"
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side
    UL-Listed: No, Yes
  16. External UPS Battery System for FFU
    External UPS Battery System for FFU
    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 Material

    • 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
  17. Laminar Flow Diffusers with HEPA/ULPA Filters
    Stocked
    Laminar Flow Diffusers with HEPA/ULPA Filters
    From
    As low as $459
    Some ship in 1 - 3 days
    StockedStockedISO 4 IconISO 4 Icon
    1 Material1 ISO Rated Air Cleanliness3 Size1 Filter2 Filter Replacement Access2 Adjustable Damper

    • Available Certified ISO Grade™ Designs: 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
    ISO Rated Air Cleanliness: ISO 5
    Size: 2'x3', 2'x4', 2'x2'
    Filter: HEPA
    Filter Replacement Access: Top Side, Room-Side
    Adjustable Damper: No, Yes
  18. Constant Airflow Fan Filter Units
    Constant Airflow Fan Filter Units
    From
    As low as $1,831
    Some ship in 0 - 10 days
    ISO 7 IconISO 7 Icon
    1 Voltage1 Material3 Size2 Filter Type2 Filter Replacement Access1 FFU Control1 UL-Listed6 Airflow Volume

    • Constant airflow design dynamically adjusts for changes in static pressure, filter load, and other conditions to maintain set airflow
    • Available in top-side replaceable and room-side replaceable configurations
    • Electronically commutated (EC) brushless motor provides a quieter sound level than most 2' x 4' fan filter units at 52.3 dBA
    • 90 fpm airflow up to 1.0" wg static pressure levels
    • Finger guard protected inlet to protect users and the equipment
    Voltage: 115 V
    Material: Aluminum
    Size: 2'x4', 2'x3', 2'x2'
    Filter Type: HEPA, HEPA, RSR
    Filter Replacement Access: Top Side, Room-Side
    FFU Control: Automatic
    UL-Listed: Yes
    Airflow Volume: 250 - 660 CFM, 225 - 650 CFM, 160 - 410 CFM, 240 - 610 CFM, 200 - 500 CFM, 140 - 350 CFM
  19. Filter Replacement Alarm System for Fan Filter Units
    Stocked
    Filter Replacement Alarm System for Fan Filter Units
    From
    As low as $748
    Some ship in 1 - 3 days
    StockedStockedISO 6 IconISO 6 Icon
    2 Voltage1 Alert Type

    • Available Certified ISO Grade™ Designs: 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
    Alert Type: Audible & Visible
  20. Smart® EC Fan Filter Unit With Integrated UPS Battery System
    Stocked
    Smart® EC Fan Filter Unit With Integrated UPS Battery System
    From
    As low as $2,613
    Some ship in 0 - 2 days
    BioSafe classic logoBioSafe classic logoULus ListedULus ListedWhisperFlowWhisperFlowStockedStockedISO 5 IconISO 5 Icon
    1 Voltage2 Material2 ISO Rated Air Cleanliness1 Size2 Filter1 Filter Replacement Access

    • Available Certified ISO Grade™ Designs: 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 V
    Material: Powder-Coated Steel, Stainless Steel
    ISO Rated Air Cleanliness: ISO 5, ISO 4
    Size: 2'x4'
    Filter: HEPA, ULPA
    Filter Replacement Access: Top Side
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305 products meet your criteria.

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FFU Resources
  • 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

Features and Benefits

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.

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.

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.

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).

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

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.

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.

Fan/Filter Units

  • Terra Universal WhisperFlow® Hoods and Filter Fan Units
  • HEPA filters prevent infections HEPA Filters Prevent Infection
  • Portable HEPA Filtration System Watch Terra's Portable HEPA Filtration System Video
  • Stainless Steel WhisperFlow Fan and Filter Units Stainless Steel WhisperFlow Fan and Filter Units, 2' x 4'
  • COVID-19 Contamination Control Products by Terra Universal
  • Explosion-Proof Softwall Cleanroom Explosion-Proof Softwall Cleanroom
  • 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
  • Ducted Reverse-Flow Fan Filter Unit COVID-19 Infection Control
HEPA filters prevent infections
Portable HEPA Filtration System
Stainless Steel WhisperFlow Fan and Filter Units
Explosion-Proof Softwall Cleanroom
2' x 4' Ducted HEPA Filter Unit
Cleanroom HEPA or ULPA Fan Filter Unit
Ducted Reverse-Flow Fan Filter Unit
Technical Resources

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