Terra Part # 2001-32C-MS
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70780
Hood; Vertical Laminar Flow Station, 304 Stainless Steel, Motorized Shield, 76" W x 41" D x 91" H, 120 V
  • Work space height and clearance varies between 31-37"H
  • Includes hood, controller, lighting, SDPVC side panels, and PLC touch screen interface
  • Power Integration Module features switching and breaker protection for all electrical components
  • Operation Status Indicator that flashes if fan is not operational
  • Bench sold separately
  • Provides display and control of backpressure alarm gauge, light, fan speed, and motorized shield (if equipped)
  • Includes Room-Side Replaceable HEPA FFUs
  • Advanced baffling technology ensures uniform airflow across the filter face and attenuates sound for quiet operation: approximately 53 dBA @ 100 feet/minute
  • Motorized Shield Included

Airflow Design: Vertical

Depth: 41"

Hood Design: Floor

Electronic Air Speed Control: Yes

Filter Type: HEPA, RSR

Frame Material: 304 Stainless Steel

Height: 91"

Inside Depth: 30.5"

Inside Height: 69.2"

Inside Width: 73"

Light Fixture: Fluorescent

Manufactured by: Terra Universal

Model: Vertical Laminar Flow Station

Side Panels: Static-Dissipative PVC

Shield Type: Motorized Shield

Width: 76"

Work Area Dimensions: 73" W x 30.5" D x 69.2" H

Unit of Measure: EA

Dimensions, Product: 76" W x 41" D x 91" H

Dimensions, Shipping: 82" W x 47" D x 99" H

Electrical Specifications: 120 V, 7.5 A, 900 W, 50/60 Hz

Marks & Listings: UL, ULC

Package Type: Crate

Weight, Product: 591 lb

Weight, Shipping: 1,008 lb

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Vertical Laminar Flow Hoods

  • Terra Universal WhisperFlow Laminar Flow Hoods Terra Universal WhisperFlow Laminar Flow Hoods
  • Laminar Flow Hood Airflow Fog Test
  • HEPA Filtration for Particle-Free Airflow HEPA Filtration for Particle-Free Airflow
  • Vertical Laminar Flow Station with Vibration Isolated Work Surface Isolated Work Surface Enhances High Magnification Viewing
  • High-Clearance, Wide-Access Vertical Laminar Flow Hoods ValuLine™ Vertical Laminar Flow Stations
  • PLC Touchscreen Controls on Vertical Laminar Flow Hood PLC Touchscreen Panel on Vertical Laminar Flow Hood
  • Vertical Laminar Flow Tilt-Up Shield Tilt-Up Shield
Terra Universal WhisperFlow Laminar Flow Hoods

Features and Benefits

Laminar Flow and Fume Hoods FAQs

Laminar Flow and Fume Hoods FAQs

Laboratory hoods serve a number of critical purposes in the lab environment.

Product protection from particulate contaminants in the lab environment, including microbes

Such hoods, often called laminar flow workstations or clean benches, use a flow of HEPA-filtered air to prevent influx of viable and non-viable particles into the enclosure and to sweep away any contaminants generated by the work process.

Protection of personnel and lab environment from substances generated inside the enclosure

For fume containment, laboratory fume hoods use a ducted ventilation system that maintains negative pressure. Where ducting is impractical, ductless hoods are also available for removal of non-hazardous contaminants (fumes or particles), using either HEPA or activated carbon filters.

Protection of product, operator and environment

Biological safety cabinets combine aspects of both hood types: a laminar flow of micro-filtered air and negative-pressure containment of bio-hazard fumes.

Laminar Flow Hoods
Vertical Laminar Flow Hood Airflow Diagram

Laminar flow hoods (also called laminar flow clean benches) force air through a HEPA or ULPA filter to create a clean work area free of nearly all contaminating particulates, including bacteria, mold spores and many viruses. These hoods use a vertical or horizontal airflow design. Both provide excellent protection of products from particulates and cross-contamination, but do not protect the operator or environment.

So why choose one over the other? Vertical laminar flow hoods (VLF Hoods) require less floor space, but more overhead clearance. In addition, a sash at the front of the VLF hood provides a barrier between air exiting the hood and the operator’s face. VLF hoods create turbulent air flow when air strikes the work surface, requiring sterile work to be performed above the work surface.

HLF hoods minimize air turbulence (and particle backflow) on the work surface except where equipment disrupts the horizontal airflow. However, they direct the airflow directly at the operator’s face and require more depth to accommodate placement of the fan filter unit at the rear of the hood.

Read more about the differences between horizontal and vertical laminar flow hoods

Fume Exhaust Hoods

Laboratory fume hoods draw air from the environment through the opening of the hood, allowing environmental contaminants into the work area. Thus, lab fume hoods do not offer a sterile environment or product protection. Instead, chemical fume hoods are designed to protect the operator from dangerous or irritating fumes and powders generated from work performed inside the hood.

In ducted fume hoods and canopy fume hoods, air passes out of the hood through a duct leading to an in-house ventilation system that contains and/or neutralizes hazardous materials.

Ductless Exhaust Hood Air Flow Diagram

In ductless fume hoods, fans draw exhaust air through a series of filters that remove irritating substances before release back into the room. Since these filters are not 100% efficient in removing all substances, ductless fume hoods are not advised in the presence of biohazards; however, they provide a convenient, cost-effective solution for operations involving irritating but non-hazardous fumes in facilities where an in-house HVAC system cannot be accessed.

Biosafety Cabinets

Biological Safety cabinets combine design aspects of both laminar flow and fume hoods. Filtered air is directed downward onto the work surface and then travels into a plenum through openings on the front and sides of the hood. Depending on the classification of the biosafety hood, some percentage of air is recirculated through a HEPA filter while the rest is directed out of the hood through an exhaust system. Thus, biosafety cabinets offer operator, environmental and product protection.

These laboratory safety cabinets (sometimes called IV hoods or compounding hoods) are ideal when preparing sterile medications such as chemotherapeutic agents that may pose a risk to the operator.

BSCs, BSLs, and ISO Classes

When it comes to working with hazardous or potentially infectious material, protecting personnel must be the primary concern. However, offering personnel protection does not have to come at the cost of risking product integrity. Class II BSCs provide protection to both personnel and product simultaneously. They maintain an ISO class 5 clean work area for product manipulation, while ensuring that exhaust air is filtered and ducted out of the environment. Thus, a class II BSC is the ideal solution when working with moderately hazardous material and both personnel and product safety are required.

Read more about these lab hoods here regarding their biological safety rating

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.

HEPA Fan Filter Unit with Integrated LED Light and Ionizer

FFU with built-in LED and ionizing bar provides HEPA filtered air and neutralization of static charges. Removable filter is accessible from inside the hood/cleanroom for easy replacement and servicing. Includes internal baffling plate and diffuser panel.

Recessed Lighting and Optional UV-C Sterilization

Included recessed light fixture simplifies cleaning and minimizes airflow disruptions (shown next to optional UV sterilization bulb).

Touchscreen Control Panel

PLC control panel provides control of fan speed, lights, and motorized shield; digital gauge monitors backpressure and issues alerts when filter(s) need replacement

Room-Side Replaceable HEPA Filter

To simplify filter replacement, HEPA filters can be removed and replaced while the FFU remains installed; the gel-sealed filter seats securely against the "knife-edge" on the blower housing to form a tight seal.

Vertical Flow of HEPA-Filtered Air Meets ISO 5 Particle Requirements

Side panels and access shield optimize unidirectional flow of HEPA-filtered air; advanced baffling technology ensures uniform face velocity to meet ISO 5 particle requirements.

Motorized Access Shield

Motorized access shield, included on select models, enhances laminar flow and protects operator from chemical fumes and other environmental nuisances.

Integrated Stands Isolates Hood from Work Surface

Built-in stand with dissipative PVC side panels allows VLF Stations to be positioned over any table or processing equipment without transferring hood vibration to work surface (shown integrated with optional modular wet station).

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.

Complete Project Transparency

Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling

Vertical Laminar Flow Clean Bench with Automatic Height Adjusting Table

Automatic height adjusting tables fit perfectly inside free-standing laminar flow clean benches. The separate workstation helps isolate vibration from the fans mounted above the hood. Dual motor electric height adjusting columns beneath the table allow users to quickly raise or lower the work surface without moving equipment off the table.

Network of International Reps

Terra employs an international network of more than 20 local sales reps trained to provide comprehensive service on Terra's complete catalog of products

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • UV Germicidal Lamp
    The V-Ray germicidal UV lamp is installed within a Terra hood to inhibit microbial growth on the work surface
  • Static-Neutralizing Ionizing Bar
    Airflow from the blower distributes positive and negative ions onto the surfaces below, neutralizing static charges that can lead to electro-static discharge and attract particles.
  • HEPA Filters Capture Micro-Contaminants
    HEPA (High-Efficiency Particulate Air) Filters rated 99.99% efficient with particles 0.3 microns and larger in diameter.
  • Lighthouse Handheld Airborne Particle Counters
    Lightouse portfolio of handheld airborne particle counters ensure accurate readings of cleanrooms and critical environments
  • Isolated Work Surfaces in Many Materials
    Tables in many styles and materials, including dissipative laminate, chemical-resistant polypropyene and epoxy resin, are isolated from hood to reduce vibration (shown: solid stainless steel top with adjustable powder-coated legs).
  • Work Station Drawers
    Available in ABS plastic or stainless steel, these cleanroom-compatible drawers come in a number of sizes and drawer configurations (6” top drawer and 6” bottom drawer shown).
  • Explosion-Proof Fan Filter Unit for Hood
    UL-listed, NEC Class I, Division 1 Explosion Proof fan/filter unit provides HEPA filtration where solvent vapors, dust and other flammable hazards are present; all conduit and switches also meet explosion-proof requirements.
  • Explosion-Proof 40W LED Light
    UL-listed for Class I, Division 1 and 2, Groups C and D areas, this low profile LED light produces 3,600 lumens and operates from 120 to 277VAC, 50/60Hz. The heat-dissipating housing increases the efficiency and lifespan of the LEDs.
  • Explosion-Proof Power Switches
    UL-rated explosion-proof switches are connected to the lights and blowers using specialized conduit with potted fittings. All electrical components are sealed to eliminate potential ignition points.

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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