Green Fume Hood

A Green Fume Hood (often abbreviated as GFH) refers to an advanced, environmentally friendly type of ductless (filtered) laboratory fume hood designed for safe handling of hazardous chemicals, vapors, solvents, acids, powders, and more. Unlike traditional ducted fume hoods that exhaust air outside via HVAC systems (consuming massive energy and requiring complex infrastructure), Green Fume Hoods use integrated molecular filtration technology to capture and neutralize contaminants internally, recirculating clean air back into the lab.

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Key Features and Technology

• Filtration System: Powered by Erlab's patented GreenFumeHood (GFH) Technology (now in version 3), featuring Neutrodine Unisorb® filters. These high-retention-capacity filters handle a broad range of chemicals (multidisciplinary use) without needing multiple specialized filters. They achieve zero emissions inside/outside the lab and exhaust 100 times fewer contaminants than official limits (e.g., TLV/PEL).

• Energy Efficiency: Reduces energy use by up to 96% and operational costs by 70% compared to ducted hoods. No need for constant high-volume air exhaust—can run 24/7 with sash open/closed without wasting energy or polluting. A 20-year carbon footprint study showed 94% reduction.

• Safety and Compliance: Maintains face velocity (e.g., 0.5 m/s or 100 fpm). Includes real-time sensors, alarms, remote monitoring via apps (e.g., eGuard), and connectivity for up to 250 hoods.

• Flexibility: Ductless design allows easy relocation, no HVAC upgrades needed. Ideal for labs, cleanrooms, teaching facilities, or renovations. Optional HEPA for powders/particulates.

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Features of a Green Fume Hood

• Filtered Recirculation System: Instead of exhausting all air outdoors, it filters contaminated air through carbon or HEPA filters and recirculates it into the lab, reducing HVAC load.

• Energy Efficient Fans & Controls: Uses variable air volume (VAV) systems and smart sensors to minimize airflow when not in use.

• Eco-designed Materials: Constructed with low-VOC paints, recyclable materials, and non-corrosive components.

• No External Ducting Required: Ideal for labs where ducting to the exterior is costly or impractical.

• Low Operating Cost: Saves significant energy by not conditioning (heating/cooling) the air that’s vented out.

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Applications

• Chemical analysis labs

• Pharmaceutical R&D

• Educational laboratories

• Quality control or formulation testing

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Safety

• Built-in sensors for airflow, filter saturation, and VOC detection.