Terra Part # 2001-68
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• Provides a particle-free environment for contamination-sensitive work

• Dissipative PVC side panels help maintain a laminar flow of HEPA filtered air

• Tilt-up dissipative PVC sash lets the operator adjust the access area

• Includes FDA-approved silicone sealant; specify alternative sealant if needed

• ValuLine Hoods cannot be customized

• Internal baffling plates and anodized aluminum diffuser panel ensure uniform air speed across the filter face

• Turnkey system comes complete with HEPA FFUs, lighting, SS work surface, tilt-up sash, and GFI outlet

• Because the attached workstation transmits fan vibration, this design is NOT suitable for delicate operations with scales, balances, and other precision instruments; select Terra’s VLF Workstation instead

• Included Power Integration Module features switching and breaker protection for all electrical components

• Operation Status Indicator that flashes if fan is not operational

Airflow Design: Vertical

Depth: 32"

Hood Design: Floor

Electronic Air Speed Control: No

Filter Type: HEPA Included

Frame Material: Powder-Coated Steel

Height: 91"

Inside Depth: 30"

Inside Height: 36.75"

Inside Width: 48.95"

Light Fixture: Fluorescent

Manufactured by: Terra Universal

Max Opening: 33.75" H

Model: ValuLine Vertical Laminar Flow Station

Side Panels: Static-Dissipative PVC

Sash Height: 23.5"

Sash Opening: 10.25"

Width: 52"

Work Area Dimensions: 48.95" W x 30" D x 36.75" H

Unit of Measure: EA

Laminar Flow Hoods

  • Vertical Laminar Flow Tilt-Up Shield Tilt-Up Shield
  • High-Clearance, Wide-Access Vertical Laminar Flow Hoods ValuLine™ Vertical Laminar Flow Stations
  • Powder-Coated Steel Laminar Flow Hood ValuLine™ Vertical Laminar Flow Station
Vertical Laminar Flow Tilt-Up Shield
High-Clearance, Wide-Access Vertical Laminar Flow Hoods
Powder-Coated Steel Laminar Flow Hood

Features and Benefits

Hoods 101

Laminar Flow and Fume Hoods 101

Laboratory hoods serve a number of critical purposes in the modern 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 micro-filtered air to prevent influx of 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 both product and operator and environment

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

Laminar Flow Hoods
Vertical Laminar Flow Hood Airflow Diagram

Laminar flow hoods (also called 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 (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.

Fume Hoods

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

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

Ductless Exhaust Hood Air Flow Diagram

In ductless fume hoods, fans draw exhaust through a series of filters that remove irritating substances and then release it 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

Biosafety cabinets combine 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 cabinet, some percentage of air is recirculated and the rest is directed out of the hood through an exhaust system. Thus, biosafety cabinets offer both operator and product protection.

These hoods are ideal when working with sterile substances such as chemotherapeutic agents that may pose a risk to the operator.

WhisperFlow® Cleanroom Fan Filter Units

Design features internal baffling and an aluminum diffuser to provide quiet operation along with uniform air speed for ISO-compliant laminar flow.

Tilt-Up Shield

Static-dissipative PVC tilt-up shield on the ValuLine™ Vertical Laminar Flow Station enhances unidirectional air flow and protects operator against chemical splashes.

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.

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 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.

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  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
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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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