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Terra Part #PriceShips in
120 V Horizontal 304 Stainless Steel 48" 24" 24" 304 Stainless Steel 1686-59C-SSE 57496 $8,53135-45 Days2
120 V Horizontal 304 Stainless Steel 48" 24" 24" Static-Dissipative PVC 1686-56C-SSE 57494 $8,51625-35 Days3
120 V Horizontal Powder-Coated Steel 48" 24" 24" 304 Stainless Steel 1686-59C-E 57483 $7,26735-45 Days4
120 V Horizontal Powder-Coated Steel 48" 24" 24" Static-Dissipative PVC 1686-56C-E 57481 $7,25625-35 Days5
120 V Vertical 304 Stainless Steel 48" 30" 28" Static-Dissipative PVC 1686-51C-30-SSE 57490 $8,51625-35 Days6
120 V Vertical 304 Stainless Steel 48" 30" 34" Static-Dissipative PVC 1686-54C-30-SSE 57486 $8,53135-45 Days7
120 V Vertical Powder-Coated Steel 48" 30" 28" Static-Dissipative PVC 1686-51C-30E 57477 $7,25625-35 Days8
120 V Vertical Powder-Coated Steel 48" 30" 34" Static-Dissipative PVC 1686-54C-30E 57479 $7,2671-3 Days9
Stocked
120 V 304 Stainless Steel 72" 30" 28" 304 Stainless Steel 1686-98 61346 $27,30636-46 Days10
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Product Details

• Explosion-Proof Laminar Flow Hoods are designed for working in areas where there is a risk of ignition due to flammable fumes or explosive dusts

All electrical components (fan motor, LED lights, wiring) are rated compliant for Class I, Division 1, Groups C & D and Class II, Division 1, Groups F & G hazardous locations

• This turnkey benchtop solution provides a particle-free work environment on any available work surface

• Available with vertical or horizontal laminar airflow (both designed to protect the workspace inside the hood)

• 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.

• Non-sparking blower motor is mounted in a cast iron, explosion-proof housing

• 99.99% efficient HEPA filter (rated @ 0.3 µm particles) creates ISO 5 cleanliness conditions for contamination sensitive work

• Price includes explosion-proof light, fan/filter unit, and installation of wiring in rigid conduit with potted fittings, as well as modification of Power Distribution Module(s) and Control Panel switches

Marks & Listings: UL, ULC

Explosion-Proof Hoods

  • Explosion-Proof WhisperFlow Hood Explosion-Proof WhisperFlow Hood
Explosion-Proof WhisperFlow Hood

Features & Benefits

Features and Benefits

Explosion-Proof VLF Hoods

More Information

Explosion-Proof Fan/Filter Unit Specifications
  • NEC Type: Explosion-proof, Class I Group C & D, Class II Group F&G, Division 1, Fan-cooled
  • Electrical Type: Capacitor start, induction run, single-speed
  • Design: 0.25 HP, 1140 RPM, Direct-drive
  • Frame Construction: Cast Iron
  • Filter: 99.99% efficient @ 0.3 µm particles (HEPA)
  • Housing: 304 Stainless Steel
  • Impeller: Forward-curved, non-sparking centrifugal type; factory balanced
Model Nominal Dimensions Inches (mm) Avg. CFM (m3/h) Airflow ft/min (m/s) Run Amps (Watts) @ 60Hz
2 x 4 23.72 x 47.63 x 19.86 (603 x 1210 x 504) 717
(1218)
102
(0.51) )
4.3A
(512W)
2 x 3 23.72 x 35.63 x 19.86
(603 x 905 x 504)
602
(1023)
116
(0.59)
4.1A
(500W)
2 x 2 23.72 x 23.63 x 19.86
(603 x 600 x 504)
558
(948)
166
(0.84)
3.9W
(472W)
Outside Dimensions
  • A: 48.5" W
  • B: 30.5" D
  • C: 48.5" H
Inside Dimensions
  • D: 46" W
  • E: 29" D
  • F: 29" H
  • G: 23" D

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.

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.

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 25% as loud as 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.

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.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

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

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 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).
  • 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).
  • UV Germicidal Lamp
    The V-Ray germicidal UV lamp is installed within a Terra hood to inhibit microbial growth on the work surface
  • Benchtop Vertical Laminar Flow Hood with Automatic Height Adjusting Table
    Vertical laminar flow hoods provide a HEPA-filtered work area for protection from particle contaminants. Benchtop laminar flow hoods can easily mount to an automatic height adjusting table (28”-43”H). Perfect for workstations with heavy or fragile equipment.

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Manuals & Resources

Manuals & Resources

Specializing Common Lab Hoods

Blog Post

Laminar Flow Hood Features Comparison

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