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Terra Part #PriceShips in
24"30"42"PCR Hood 1675-54-24 80343 $4,82010-12 Days2
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48"30"42"PCR Hood 1675-54-48 80341 $5,65810-12 Days3
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36"30"42"PCR Hood 1675-54-36 80342 $5,35210-12 Days4
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72"30"42"PCR Hood 1675-54-72 80345 $8,36310-12 Days5
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Product Details

  • Includes a timed UVC irradiation lamp to decontaminate hood after use
  • HEPA-filtered laminar airflow for ISO 5-level cleanliness
  • Fluorescent light fixture and transparent panels offer plenty of light
  • Air-velocity meter to confirm sufficient airflow at the sash
  • Choose from acrylic or static-dissipative PVC panels
  • Optional stainless steel work surface for durability and corrosion-resistance
  • Powder-coated steel frame allows panels to slide out for cleaning/replacement
  • Full-length front access shield can be safely closed during UV decontamination cycles (includes magnetic latches
  • HEPA filter rated 99.99% efficient for particles 0.3 micron or larger
  • Anodized aluminum diffuser panel ensures uniform face velocity
  • Low-vibration blower and rubber mounts minimize disruption at the work surface
  • Status Indicator Light flashes to warn personnel when the blower is not operating
  • PCR Laminar Flow Hood is designed to meet your RNA- and DNA-amplification and replication needs
  • Includes UVC Disinfection Module with "exposure switch" to protect users from harmful UV light
  • Vertical HEPA-filtered air flow maintains ISO-5 compliant work area
  • Fully-enclosed environment keeps UV energy safely contained during sterilization
  • No installation required, plugs directly into a standard 110 volt outlet
  • Air flow speed of >90 feet/minutes (0.46 m/s) from HEPA filter face
  • Hood operates quietly: 50 dBA measured 30" (762 mm) from HEPA filter face
  • Samples and equipment introduced to Hood via large front opening through sash

Marks & Listings: UL, ULC

BioSafe Universal PCR Hoods

  • Terra Universal WhisperFlow Laminar Flow Hoods Terra Universal WhisperFlow Laminar Flow Hoods
  • Laminar Flow Hood Airflow Fog Test
Terra Universal WhisperFlow Laminar Flow Hoods

Features & Benefits

Features and Benefits

Vertical vs Horizontal Laminar Flow

Vertical vs. Horizontal Laminar Flow Hoods: A Scorecard for Specifiers

Laminar is derived from the Latin lamina, a thin sheet of material. When used to describe a laboratory hood, the term "laminar flow" refers to air exiting a filter in parallel layers that move at the same speed and in the same direction, vertically or horizontally across the enclosure. Any particles introduced in a laminar flow of air during a work process are predictably swept in the direction of the flow and removed from the enclosure, downstream of critical processes.

Disruption to laminarity results in turbulence, a randomized flow that suspends particles in eddies rather than removing them. Because they can remain in the system, carried by “second-pass” air that swirls around the critical work area, contaminants are deposited unpredictably, often with disastrous results.

Consideration #1: Footprint

Vertical laminar flow (VLF) hoods position the fan filter unit on top of the hood, a space-efficient design that accommodates most facilities as long as overhead clearance isn’t a problem. Horizontal laminar flow (HLF) hoods position the fan on the back of the hood, necessitating as much as 18” or more additional floor or bench space for fan, filter and make-up air flow. In a cleanroom or lab where space is at a premium, that difference alone could determine your choice. Footprint Advantage: VLF Hood


Consideration #2: Air Sash

VLF hoods often have an adjustable sash at the front of the hood to maintain the downward laminar air flow. HLF hoods are generally open at the front of the hood to ensure unrestricted horizontal air flow. The larger opening of an HLF hood makes placement of large objects and instruments easier when compared to a VLF hood although, without a sash to serve as a shield, chemical fumes or powders inside the work area may blow into the operator's face. Sash Advantage: VLF Hood (operator safety); HLF Hood (transferring large materials)


Consideration #3: Laminar Flow

Although both hoods are effective at sweeping particles from the hood, air eventually encounters obstacles that disrupt laminar flow. In most VLF hoods, the work surface creates turbulence, so critical processes must be performed above the surface to avoid contact with “second-pass” air that could contaminate a sensitive operation. Some VLF designs include a perforated floor with sub-surface plenum to reduce this obstruction, but these measures add cost. HLF hoods generally minimize this airflow disruption. However, large objects placed on the work surface can cause swirling or contaminate downstream materials, so critical operations should take place adjacent to the filter face. Laminar Flow Advantage: HLF Hood

We end with a tie; your working conditions will help you determine which of these advantages matter most in your operation.

Safety Alert: Under no circumstances should laminar flow hoods be used in the presence of hazardous materials. Use a fume hood or biological safety cabinet for safe biohazard containment.

ModelHorizontal Laminar Flow (HLF) StationVertical Laminar Flow (VLF) StationValuLine™ VLF StationValuLine Whisperflow HoodPortable CleanBooth
FlowHorizontalVerticalVerticalVerticalVertical
Nominal Widths 7', 6', 4'
(2.1 m, 1.8 m, 1.2 m)
8', 6', 5', 4'
(2.4 m, 1.8 m, 1.5 m, 1.2 m)
8', 6', 5', 4'
(2.4 m, 1.8 m, 1.5 m, 1.2 m )
6', 5 ', 4', 3 ', 2 '
(1.8 m, 1.5 m, 1.2 m, .9 m, .6 m)
6', 4'
(1.8 m, 1.2 m)
Nominal Overall Depth and Height44"D x 63"H
(1118 mm x 1600 mm)
41"D x 90"H
(1041 mm x 2286 mm)
41"D x 90"H
(1041 mm x 2286 mm)
24”/30”D x 41”H
(610/762 mm x 2286 mm)
30"D x 82"H
(762 mm x 2083 mm)
Nominal Working Space30"D x 28"H
(762 mm x 711 mm)
27"D (686 mm); height depends on workbench used27"D (686 mm); height depends on workbench used24”/30”D x 23”H (610/762 mm x 584 mm)24"D (610 mm); height depends on workbench used
Construction Material / Options
  • Powder coated steel frame exterior
  • 304 Stainless steel interior
  • Powder coated steel
  • 304 stainless steel
  • Acrylic or SD PVC shield options
  • Powder coated steel
  • 304 stainless steel
  • Acrylic or SD PVC shield options
  • 304 stainless steel frame
  • 304 SS, acrylic or SD PVC panels
  • Powder Coated Steel Frame
    Work Surface Options
  • Stainless steel work area
  • Optional electropolished finish.
  • Workbench sold separately; many top materials available. 2-piece frame isolates fan vibration.304 Stainless Steel work surface includedPlaced on user-furnished bench (stands available)Workbench sold separately; many top materials available. 2-piece frame isolates fan vibration.
    Blower TypeIntegrated Fan/Filter UnitIntegrated Fan/Filter UnitIntegrated Fan/Filter UnitIntegrated Fan/Filter UnitIntegrated Fan/Filter Unit
    Air Flow,7' (2.1 m)
    6' (1.8 m)
    4' (1.2 m)
    8' (2.4 m)
    6' (1.8 m)
    5' (1.5 m)
    4' (1.2 m)
    8' (2.4 m)
    6' (1.8 m)
    5' (1.5 m)
    4' (1.2 m)
    6'(1.8 m)
    5'(1.5 m)
    4' (1.2 m)
    3 ' (.9 m)
    6' (1.8 m)
    4' (1.2 m)
    CFM (m³/hr)1130 (1920)
    960 (1632)
    650 (1104)
    1300 (2209)
    960 (1632)
    840 (1427)
    650 (1104)
    1300 (2209)
    960 (1631)
    840 (1427)
    650 (1104)
    960 (1632)
    840 (1427)
    650 (1104)
    558 (948)
    960 (1632)
    650 (1104)
    Filter TypesHEPA or ULPAHEPA or ULPAHEPA or ULPAHEPA or ULPAHEPA or ULPA
    PrefilterWashable Polyurethane FoamWashable polyurethane FoamWashable polyurethane FoamWashable polyurethane FoamWashable polyurethane Foam
    Portability / Installation AccessNot portableNot portable.
    Wider than standard door frame
    Not portable.
    Wider than standard door frame
    PortablePortable: CleanBooth frame uses casters.
    Front Sash Configuration OptionsTake-up air slots and plenums on three sides of the work area
  • Motorized sliding shield (allows simplified disassembly and transport)
  • Strip shield curtains
  • Or no shield
  • Counterweighted sliding shield (disassembly requires technical capabilities)
  • Strip shield curtains
  • Or no shield
  • Tilt-UpUses softwall panel kits: vinyl, anti-static vinyl, or 
    non-outgassing polyurethane
    LightingLEDLEDLEDLEDOptional fluorescent lighting
    Noise Level, Measured 30" (762mm) from filter face at 90 FPM (.46m/s)<50 dBA<50 dBA<50 dBA<50 dBA<50 dBA
    Airflow Monitor OptionsMinihelic gauge monitors backpressure across filterIncludes touch screen controls with backpressure indicatorOptional: air velocity meter and differential pressure gauge for filter backpressureOptional swing-vane anemometerOptional: air velocity meter and differential pressure gauge for filter backpressure
    Power Requirements120 VAC, 50/60 Hz
    or 220VAC, 50 Hz
    110 VAC, 50/60 Hz
    or 220VAC, 50 Hz
    110 VAC, 50/60 Hz
    or 220VAC, 50 Hz
    110 VAC, 50/60 Hz
    or 220VAC, 50 Hz
    120 VAC, 50/60 Hz
    or 220VAC, 50 Hz
    Price Range$9,300 – $14,300+$6,000 - $14,000+$5,000 - $10,000+$1500$2,000 - $4,500+
    Application Synopsis
  • Large working space
  • Airflow design reduces turbullence
  • Quiet, reliable fan/filter modules
  • Differential pressure gauge monitors filters
  • Clean, easy-to-sterilize internal surfaces
  • Large working space and overhead clearance
  • Economical
  • Quiet, reliable fan/filter modules
  • Optional counterweighted shield requires overhead clearance for disassembly
  • Large working space and overhead clearance
  • Economical
  • Quiet, reliable fan/filter modules
  • Optional counterweighted shield requires overhead clearance for disassembly
  • Portable
  • Economical, variety of panel materials
  • Quiet, reliable fan/filter modules
  • Easy cleaning
  • Large working space and overhead clearance
  • Economical
  • Quiet, reliable fan/filter modules
  • Portability
  • 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).

    Continuous Product Improvement

    At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

    Dedication to Business Ethics

    Terra is committed to conducting business according to the highest standard of professional ethics and conduct. To review Terra’s ethics code, please visit: https://www.terrauniversal.com/ethics-policy/

    Terra's QuickBuild Program

    Build your system using in-stock components and accessories. We’ll assemble your system, package and ship your order in 6 business days.

    Available Accessories

    Popular Accessories

    For a full list of accessories, select a product then click Choose Accessories on that product page.
    • Pipette Shelf Rack Organizes Pipettes
      Pipette shelf rack organizes mechanical or electronic pipettes. Available in plexiglass acrylic or chemical resistant static-dissipative PVC.
    • Proline Plus 12-Channel Mechanical Pipette
      Ideal for high throughput environments, the Proline Plus in the Biohit family of Liquid Handling products from Sartorius combines lightweight, ergonomic design and precision in a robust pipette ideal for experienced lab professionals and students.
    • Proline Plus Single-Channel Mechanical Pipette
      Proline Plus mechanical pipettes are compatible with Sartorius optifit tips and safety space filter tips.
    • Cost-effective Pipette Multipacks
      mLINE Multipacks available in 3 to 5 pack kits that include compatible Optifit Tips and a linear stand
    • UV Germicidal Lamp
      The V-Ray germicidal UV lamp is installed within a Terra hood to inhibit microbial growth on the work surface
    • Replacement Filters
      Purchase replacement filters ahead of time to prevent costly operational interruptions and avoid damage to fan blowers caused by excessive backpressure from long overdue filter replacements.
    • Fan Filter Unit with External UPS Battery System
      Uninterruptible Power Supply (UPS) system provides backup battery power supply to keep critical equipment running without interruption when utility power supply is unavailable. The separate system can be retrofitted to an existing 2’x4’ FFU. Stainless steel model available.

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    Manuals & Resources

    Manuals & Resources

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     * 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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