Terra Part # 1686-98
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Hood; Explosion-Proof, Horizontal Laminar Flow, integrated stand, 304 Stainless Steel, 72" W x 30" D x 64" H, 120 V

• Includes integrated stand

• Removable rear access doors with handles for accessibility to filters

• Return ducts along the front and side edges of the work area to reduce backflow turbulence

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

• Operation Status Indicator that flashes if fan is not operational

• Inside Dimensions: 72" W x 30" D x 28" H

• Outside Dimensions: 76" W x 44" D x 63" H

• Includes powder-coated steel base stand

• Light Specification:

• Lumens: 3,600/90 Lumens Per Watt NEMA 4X

• Color Temp: 5000K

• Includes Class I Div 1 explosion proof fan/filter unit with 99.99% efficient HEPA filter; fan features non-sparking motor, mounted in a cast-iron, explosion-proof housing

• Includes 16W LED strip light rated for Class I Div 2 environments and ETL 1598 compliant for use in wet environments; produces 1208 lumens

• Includes installation of wiring in filled rigid conduit, and Control Panel that meets NEC requirements for Class I, Division 2 Hazardous Locations

• Includes FDA-approved silicone sealant

• Specify acrylic urethane or other required sealant type when FFU hood is ordered

• 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.

Depth: 30"

Hood Design: Benchtop

Filter Type: HEPA

Frame Material: 304 Stainless Steel

Height: 64"

Inside Depth: 30"

Inside Height: 28"

Inside Width: 72"

Light Fixture: Explosion-Proof LED

Manufactured by: Terra Universal

Max Opening: 17"H

Model: Explosion-Proof Hood

Side Panels: 304 Stainless Steel

Sash Design: Manual/Tilt-Up

Sash Height: 8"

Sash Opening: 15"

Width: 72"

Work Area Dimensions: 72"W x 28.5"D

Unit of Measure: EA

Dimensions, Product: 76" W x 44" D x 64" H

Dimensions, Shipping: 82" W x 50" D x 70" H

Electrical Specifications: 120 V, 15 A, 1,800 W, 50/60 Hz

Marks & Listings: UL, ULC

Package Type: Crate

Weight, Product: 940 lb

Weight, Shipping: 1,010 lb

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Explosion-Proof Hoods

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

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
(0.51) )
2 x 3 23.72 x 35.63 x 19.86
(603 x 905 x 504)
2 x 2 23.72 x 23.63 x 19.86
(603 x 600 x 504)
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

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