Hujing Purification FX-FH800-EP Full-Steel Compact Laboratory Fume Hood

Overview

The Hujing Purification FX-FH800-EP Full-Steel Compact Laboratory Fume Hood is an engineered solution for safe containment and removal of hazardous vapors, aerosols, and particulates generated during bench-scale chemical, biological, or pharmaceutical procedures. Designed in accordance with fundamental principles of aerodynamic containment, the unit operates on a total-exhaust (ducted) principle—drawing ambient air from the laboratory through the sash opening, across the work surface, and expelling contaminated air via a dedicated exhaust duct system. Its face velocity range of 0.25–0.45 m/s is calibrated to meet internationally recognized minimum performance thresholds for effective inward airflow integrity, as referenced in ANSI/ASHRAE 110-2016 and EN 14175-3:2022. The compact footprint (760 mm wide × 580 mm deep) enables integration into space-constrained laboratories without compromising functional safety margins.

Key Features

• Full-steel monocoque construction using cold-rolled steel plates with seamless welding—providing structural rigidity, corrosion resistance, and long-term dimensional stability under routine lab use.
• Front vertical sash made of tempered safety glass, manually adjustable to optimize airflow dynamics and user ergonomics while maintaining consistent face velocity across operational positions.
• Integrated utility manifold: pre-installed multi-outlet power strip (IEC 60320 compliant), quick-release water valve (brass body, EPDM seal), and optional gas shutoff valve—enabling concurrent operation of analytical instruments, heating mantles, or vacuum pumps within the containment zone.
• Work surface lined with 1.2 mm thick 304 stainless steel; seamless welds and radius-curved edges minimize crevice accumulation and support routine decontamination per ISO 14644-1 Class 5 cleaning protocols.
• Electrostatically applied epoxy-polyester powder coating (film thickness ≥60 µm) on exterior surfaces—resistant to common solvents (e.g., ethanol, acetone, 10% NaOH) and certified per ASTM D3359 cross-hatch adhesion testing.
• Low-noise centrifugal exhaust fan (rated ≤58 dB(A) at 1 m) with thermal overload protection and IP54-rated motor housing—designed for continuous duty cycles in ambient temperatures up to 40°C.

Sample Compatibility & Compliance

The FX-FH800-EP accommodates standard benchtop apparatus including Erlenmeyer flasks, beakers (up to 2 L), hot plates, and small-scale distillation setups. Its 600 mm work width and 500 mm depth permit unobstructed manipulation of samples while maintaining recommended sash height (150–300 mm above work surface) for optimal containment. The unit complies with national safety standards GB/T 24819–2009 (General Technical Requirements for Laboratory Fume Hoods) and incorporates design elements aligned with ISO 15195:2013 (Laboratory ventilation — Performance requirements for fume hoods). While not certified to UL 1805 or EN 14175 by default, its mechanical architecture supports third-party validation for GLP-compliant facilities when installed with documented commissioning reports and annual performance verification per ASHRAE 110 tracer gas testing.

Software & Data Management

This fume hood operates as a standalone mechanical system with no embedded digital controller or data logging capability. However, it features analog face velocity adjustment via calibrated damper linkage—allowing manual optimization based on real-time anemometer readings. For laboratories implementing centralized HVAC monitoring, the unit can be interfaced with building management systems (BMS) via optional 4–20 mA output modules (sold separately), enabling remote verification of fan status, airflow differential pressure, and power-on duration. Audit trails for maintenance, calibration, and containment verification are maintained externally in accordance with ISO/IEC 17025:2017 clause 8.9 and FDA 21 CFR Part 11 requirements when integrated into validated laboratory quality management systems.

Applications

• Chemical synthesis involving volatile organic compounds (VOCs), halogenated solvents, or low-boiling-point reagents.
• Acid digestion and sample preparation for ICP-MS or AAS analysis where nitric/hydrochloric acid fumes require full capture.
• Cell culture setup and media sterilization steps requiring localized containment of ethanol or isopropanol vapors.
• Pharmaceutical formulation development under non-sterile conditions where excipient dust or active pharmaceutical ingredient (API) aerosols pose inhalation risks.
• Environmental testing labs performing TCLP extractions or heavy metal leaching studies per EPA Method 1311.

FAQ

Is the FX-FH800-EP suitable for perchloric acid applications?

No. This model lacks the wash-down interior, water mist suppression system, and specialized corrosion-resistant lining required for perchloric acid hoods per NFPA 45 and ANSI Z9.5.
Can the unit be connected to variable air volume (VAV) exhaust systems?

Yes—when equipped with optional airflow feedback sensors and modulating damper actuators, it supports VAV integration with compatible laboratory exhaust controllers.
What is the recommended maintenance interval for the exhaust fan?

Inspect bearings and belt tension every 6 months; replace fan filter (if installed) quarterly; perform full ASHRAE 110 face velocity mapping annually.
Does the fume hood include a sash position sensor or alarm?

Not standard. Sash position monitoring and high-velocity alarms are available as field-installable accessories compliant with EN 14175-5 Annex B.
Is the stainless steel work surface electropolished?

No—the surface is mechanically polished to Ra ≤0.8 µm, sufficient for routine disinfection but not optimized for ultra-low particle retention in cleanroom-grade applications.