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Terra Part #PriceShips in
120With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood493065 2400-74A 80624 $9,8370-2 Days2
Only 1 left in stock
120With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood613065 2400-75A 80633 $10,4560-2 Days3
In stock soon
120With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood733065 2400-76A 80635 $11,71030-40 Days4
120With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood973065 2400-19A 80621 $8,92430-40 Days5
120With Explosion-Proof LED304Explosion-Proof Hood493065 2400-70A 80623 $15,12530-40 Days6
120With Explosion-Proof LED304Explosion-Proof Hood613065 2400-71A 80626 $19,20730-40 Days7
120With Explosion-Proof LED304Explosion-Proof Hood733065 2400-72A 80628 $20,30230-40 Days8
120With Explosion-Proof LED304Explosion-Proof Hood973065 2400-73A 80630 $21,62430-40 Days9
120Without Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood613065 2400-17 11434 $7,43430-40 Days10
120Without Explosion-Proof LED304Explosion-Proof Hood493065 2400-12 11429 $10,25330-40 Days11
240With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood493065 2400-74A-220 80632 $9,83730-40 Days12
240With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood613065 2400-75A-220 80634 $10,45630-40 Days13
240With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood733065 2400-76A-220 80636 $11,71030-40 Days14
240With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood973065 2400-77A-220 80638 $12,31930-40 Days15
240With Explosion-Proof LED304Explosion-Proof Hood493065 2400-70A-220 80625 $15,12530-40 Days16
240With Explosion-Proof LED304Explosion-Proof Hood613065 2400-71A-220 80627 $19,20730-40 Days17
240With Explosion-Proof LED304Explosion-Proof Hood733065 2400-72A-220 80629 $20,30230-40 Days18
240With Explosion-Proof LED304Explosion-Proof Hood973065 2400-73A-220 80631 $21,62430-40 Days19
240Without Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood973065 2400-19A-220 80622 $8,92430-40 Days20
120With Explosion-Proof LEDPowder-Coated SteelExplosion-Proof Hood973065 2400-77A 80637 $13,55130-32 Days21
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

Request demo from your product specialist or add note to your order or quote request.

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Custom-configured product: Terra will quote.
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Product Details
  • Safely vents fumes away from the work surface
  • Includes explosion-proof blower mounted for negative-pressure venting.
  • Select models include explosion-proof light
  • Rigid steel, free-standing structure isolates the work surface from vibrations (add workstations at checkout)
  • Select powder-coated or stainless steel to meet chemical compatibility requirements
  • Not intended for use with biohazards or compounds that produce toxic dusts
  • Select desired work surface and vapor-sealed or explosion-proof light
  • Proper installation of explosion proof equipment is critical to maintaining the explosion-proof protection aspects of the system. Therefore all wiring for explosion proof systems should be done in the field per local code by a licensed electrician.

Marks & Listings: UL, ULC

Explosion-Proof Hoods

  • Exploson-Proof Ductless Fume Hood in Use Powder-Coated Explosion-Proof Ductless Fume Hood
Features & Benefits

Features and Benefits

Ductless Exhaust Alternative

Ductless Fume Hoods: An Alternative to Laboratory Exhaust Systems

Exhaust Fume Filtration

Activated charcoal, the most common purification filtration medium, adsorbs chemicals with a molecular weight above 30 and a boiling point above 60°C. Carbon filters are also effective with many other chemicals because of their particular molecular structure.

Adsorption takes place in the active filter zone, the small cross-section of the filter bed in which the material to be removed comes in contact with the filtering medium. This active filter zone moves upward as the filter becomes saturated (see illustration). When it reaches the filter's top surface, there is an initial breakthrough by the contaminant gas; thereafter the percentage of contaminant gas that escapes filtration increases until total saturation of the filter is reached.

Ductless fume hoods manufactured by Terra use activated carbon filters to eliminate most nuisance fumes and can be used in conjunction with HEPA filtration. For more hazardous chemicals like strong acids and bases, specialized Labconco filtered fume hoods can be equipped with a wider range of filters and include an array of safety sensors for breakthrough detection.

Enhancing Filter Performance

To optimize filtration efficiency, any ductless exhaust fume system must ensure that the exhaust stream is exposed to the purification medium for an adequate time. Terra exhaust purification systems satisfy this condition in several ways.

First, our specially selected impeller ventilators are designed to ensure the optimal linear velocity of the airstream—sufficient to maintain a negative pressure in the work area that prevents backflow, but low enough to allow adequate adsorption of fumes by the filtering medium. Our pre-filters also extend exposure time by reducing the airflow through the filter.

Monitoring Filter Effectiveness

A ductless exhaust fume system needs to be monitored in two areas. The user must detect the period between initial contaminant breakthrough and the point at which the contaminant gas reaches the Threshold Limit Value (TLV) for that substance. The velocity of the airstream must also be monitored to ensure an adequate negative pressure and to detect ventilator failure.

Through periodic testing of the exhaust airstream, you can determine the useful filter life in your particular application and gauge filter effectiveness with an elapsed time meter.

An electronic airflow velocity monitor also helps users ensure safe, effective operation and provides an alarm when velocity falls below a user-defined threshold.

Put Safety First!

Avoid filter use in applications involving very toxic substances, very high volumes of contaminants, and unknown or highly volatile chemical reactions. Always make sure that filters are promptly changed when the Threshold Limit Value (TLV) has been reached for any contaminant gases present.

Static-Dissipative PVC Sliding Shield, Side Panels

Sliding shield and side panels made of transparent, chemically resistant static-dissipative PVC help contain fumes and protect operator from spills (select preferred work surface and vapor sealed or explosion-proof light separately).

Easy-Glide Shield

Easy-glide counter-weighted sliding shield made of static-dissipative PVC helps protect operator from chemical splashes and fume exposure; extend fully down to optimize containment efficiency.

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.

4,000 Worldwide Cleanrooms

Since 1976, Terra has designed and manufactured over 4,000 cleanrooms for companies at the leading edge of high technology

Complete Order Transparency

Using Terra’s OnTrak system, our customers can view real-time production updates, receive shipment notifications and track their orders until they arrive at their facility

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.

Wide Selection of Global Shipping Options

Terra offers a broad range of global shipping services including door-to-door and white glove delivery. Each product is safely packaged in a heat-treated wooden crate that meets international shipping standards.

Website Metric Conversion Tool

Easily convert any product specification to metric units of mesure using Terra's web-based metric conversion tool

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
Available Accessories
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 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.
  • Vapor- and Dust-Sealed Lights

    Vapor- and dust-sealed fluorescent lights enhance safety in chemical fume hood applications. Impact-resistant polyester housing and acrylic diffuser with two F20T12 lamps for 20 Watts total energy usage; ideal for wet or damp locations.
  • Explosion-Proof Illuminator

    This incandescent illuminator is rated Class I, Div. 1 and 2 (Groups C and D); Class II, Div. 1 and 2 (Groups E and F); and Class III, Div. 1 and 2 (all groups); suitable for locations in which ignitable mixtures exist under normal conditions.
  • Activated Charcoal Filter

    Activated charcoal filters remove a wide range of chemicals from the airstream to allow ductless fume hood operation. Bonded charcoal minimizes void spaces, improves efficiency, reduces particle sloughing. Not for use with hazardous substances.
  • 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
  • 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).
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