Walk-in Fume Hood FH(W) Series
Walk-in fume hood series providing chemical containment for large-scale laboratory work with variable airflow control (0.3-0.8 m/s) and three width configurations up to 1800mm.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The Walk-in Fume Hood FH(W) Series provides walk-in chemical containment for laboratory applications requiring user access to large experimental setups or equipment maintenance. These units feature variable airflow control with inflow velocities of 0.3-0.8 m/s and exhaust volumes ranging from 1150-1850 m³/h depending on model configuration. The walk-in design accommodates researchers working with oversized apparatus, chemical synthesis equipment, or procedures requiring full-body access to the work area.
Available in three width configurations (1200mm, 1500mm, and 1800mm), each model maintains consistent depth and height dimensions while scaling exhaust capacity proportionally. Internal work zones provide 1670mm of vertical clearance with illumination levels ≥800 Lux for detailed work visibility. Operational noise levels remain ≤62dB to minimize laboratory disruption, while vibration dampening limits amplitude to ≤5μm for sensitive procedures.
How It Works
Walk-in fume hoods operate on the principle of directional airflow containment, creating a negative pressure environment that captures and exhausts chemical vapors away from the operator. Air enters the work zone through the face opening at controlled velocities between 0.3-0.8 m/s, establishing a protective barrier that prevents vapor escape into the laboratory space. The exhaust system maintains continuous airflow through the internal work chamber, with volumetric flow rates scaled to the hood width (1150-1850 m³/h).
The containment design incorporates smooth internal surfaces and airflow distribution to minimize turbulence that could compromise vapor capture. Fluorescent lighting systems (12-16W dual fixtures) provide uniform illumination across the work surface while maintaining compatibility with chemical environments. Vibration isolation systems limit mechanical disturbances to ≤5μm amplitude, preventing interference with sensitive analytical procedures conducted within the containment space.
Features & Benefits
Automation Level
- manual
FH1500(W)
- FH1800(W)
External Size(W*D*H)
- 1200*800*2250mm
1500*800*2250mm
- 1800*800*2250mm
Internal Size(W*D*H)
- 980*550*1670mm
1280*550*1670mm
- 1580*550*1670mm
Max Opening
- 1300mm
Exhaust Airflow Volume
- 1150m³/h
1500m³/h
- 1850m³/h
Inflow Air Velocity
- 0.3~0.8m/s
Noise
- ≤62dB
Vibration
- Amplitude≤5μm
Illumination
- ≥800Lux
Fluorescent Lamp
- 12W*2
16W*2
- 16W*2
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Industrial Hygiene
- Materials Science
- Microbiology
- Pharmaceutical QC
Weight
- 300.0 kg
Dimensions
- L: 225.0 mm
- W: 120.0 mm
- H: 80.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Work Zone Access | Walk-in design with 1300mm maximum opening | Benchtop models typically limit access to sash opening height | Allows installation and operation of large equipment requiring full-body access for maintenance and operation |
| Internal Work Volume | Up to 1580×550×1670mm internal dimensions | Standard fume hoods often provide less than half the internal volume | Accommodates oversized experimental setups and multiple concurrent procedures within single containment space |
| Airflow Control Range | Variable 0.3-0.8 m/s inflow velocity | Fixed airflow systems common in entry-level models | Enables optimization of containment effectiveness versus energy consumption based on specific chemical hazards |
| Vibration Isolation | ≤5μm amplitude vibration dampening | Basic models often lack vibration control specifications | Supports precision analytical work and sensitive equipment operation within the containment environment |
This walk-in series offers significantly larger work volumes and equipment access compared to benchtop alternatives while maintaining precise airflow control. The variable velocity capability and low-vibration design support both safety containment and analytical precision requirements.
Practical Tips
Measure face velocity at 9-point grid pattern across the opening to identify airflow uniformity and dead zones.
Why: Non-uniform airflow can compromise containment effectiveness and create hazardous vapor accumulation areas.
Clean internal surfaces monthly with appropriate chemical-compatible detergents to prevent vapor absorption and re-emission.
Why: Contaminated surfaces can become secondary emission sources that compromise future experiments.
Position equipment at least 150mm from the face opening to maintain proper airflow patterns around work materials.
Why: Equipment placement too close to the opening can disrupt protective airflow and reduce containment effectiveness.
Install emergency exhaust backup systems or interlock controls to maintain containment during power interruptions.
Why: Loss of exhaust airflow can allow hazardous vapor accumulation and potential exposure risks.
Monitor and log airflow velocities before each experimental session to ensure consistent containment performance.
Why: Airflow variations can affect vapor generation patterns and potential cross-contamination between procedures.
Check for exhaust ductwork obstructions if airflow velocity decreases unexpectedly during operation.
Why: Blocked exhaust pathways reduce containment effectiveness and can cause hazardous vapor buildup.
Setup Guide
What’s in the Box
- Walk-in fume hood assembly (typical)
- Dual fluorescent lighting fixtures (typical)
- Exhaust connection hardware (typical)
- Installation manual (typical)
- Airflow calibration guide (typical)
Warranty
ConductScience provides a standard 1-year manufacturer warranty covering defects in materials and workmanship, with technical support for installation guidance and performance optimization.
Compliance
References
Background reading relevant to this product:
How do I determine the appropriate inflow velocity for different chemical procedures?
Set inflow velocity based on chemical volatility and generation rate. Use 0.3-0.5 m/s for low-volatility solvents and 0.6-0.8 m/s for highly volatile or toxic compounds. Monitor with calibrated anemometer at face opening.
What exhaust system requirements are needed for proper operation?
Dedicated exhaust system must provide specified volumetric flow rates (1150-1850 m³/h) with adequate static pressure to overcome ductwork resistance. Consult product datasheet for specific fan sizing requirements.
Can the hood accommodate analytical balances or other vibration-sensitive equipment?
Yes, vibration dampening limits amplitude to ≤5μm, suitable for most analytical balances. For ultra-microbalances, consider additional isolation platforms within the work zone.
How frequently should airflow performance be verified?
Conduct quarterly face velocity measurements and annual smoke pattern testing. Immediate verification required after any exhaust system modifications or maintenance.
What lighting maintenance is required?
Replace fluorescent tubes when illumination drops below 800 Lux. Clean fixtures quarterly to maintain light transmission through chemical-resistant covers.
Is the hood suitable for perchloric acid work?
Consult product datasheet for chemical compatibility specifications. Perchloric acid applications typically require specialized wash-down systems not standard in this configuration.
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