HJ FX-G Series Air-Purifying Chemical Storage Cabinet

Overview

The HJ FX-G Series Air-Purifying Chemical Storage Cabinet is an engineered solution for the safe, compliant, and continuous containment of hazardous laboratory chemicals without ducted exhaust infrastructure. Designed in accordance with SEFA 9-2020 (Scientific Equipment and Furniture Association) and JG/T 385–2012 (Chinese industry standard for fume cabinets and chemical storage units), this cabinet employs recirculating airflow architecture to actively remove volatile organic compounds (VOCs), acidic gases, aldehydes, ammonia, and airborne particulates from the internal storage environment. Unlike conventional vented cabinets that discharge contaminants into external ductwork—requiring structural modifications and HVAC integration—the FX-G operates as a self-contained, closed-loop system. Its core function is to maintain operator safety and indoor air quality by continuously drawing ambient air through a multi-stage filtration train, treating it in real time, and returning purified air to the laboratory space at a certified rate of 230 m³/h. This design eliminates reliance on building exhaust systems while meeting occupational exposure limits (OELs) defined under OSHA 29 CFR 1910.1200 and EU Directive 2004/37/EC (Carcinogens and Mutagens Directive).

Key Features

• Brushless DC centrifugal fan: Ensures silent operation (≤40 dB[A]), zero spark generation, and stable airflow across voltage fluctuations (110–240 V, 50–60 Hz); rated for >50,000 hours MTBF.
• Dual-parameter digital sensor array: Independent temperature and relative humidity sensors combined with electrochemical VOC detection provide real-time, trace-level monitoring (ppb-range sensitivity) and threshold-triggered audible/visual alarms.
• Modular, field-replaceable filtration system: Configurable filter cartridges—including granular activated carbon (for organics), potassium permanganate-impregnated media (for inorganic acids), formaldehyde-specific chemisorbents, ammonia-selective sorbents, and HEPA H14-grade particulate filters—allow customization per stored chemical inventory.
• 7-inch high-resolution HMI touchscreen: 1024×600 pixel display enables intuitive navigation of operational logs, filter life tracking, alarm history, and user-defined setpoints; supports multi-language UI (English, Chinese, Spanish).
• 4G-enabled IoT connectivity: Embedded SIM module facilitates secure remote access via encrypted web portal or mobile application; enables firmware updates, event logging, and audit-ready data export compliant with GLP/GMP documentation requirements.
• Structural integrity and visibility: Reinforced transparent acrylic front panel (≥8 mm thickness) meets ANSI Z97.1 impact resistance standards; full-height viewing area supports rapid visual verification of container labeling and stock status without opening doors.

Sample Compatibility & Compliance

The FX-G cabinet accommodates standard laboratory containers (glass bottles, HDPE carboys, stainless steel cans) up to 5 L volume, with shelf spacing optimized for upright 500 mL reagent bottles (160 units in FX-G800; 320 in FX-G1600). It is validated for storage of IARC Group 2B+ substances, EPA-listed priority pollutants, and UN-classified Class 3 flammable liquids (flash point ≥38°C), provided compatible filtration modules are installed. Regulatory alignment includes conformance with SEFA 9-2020 Section 7.3 (air purification performance), JG/T 385–2012 Clause 5.4 (filtration efficiency ≥90% for target contaminants), and ISO 16000-23 (indoor air—determination of VOC emissions). Optional calibration certificates (NIST-traceable sensor verification) and filter performance test reports (per ASTM D5212 for carbon beds) are available upon request for FDA 21 CFR Part 11–aligned environments.

Software & Data Management

The embedded control firmware supports automated data logging at user-configurable intervals (1 min to 24 h), storing timestamped records of VOC concentration, temperature, RH, fan speed, and filter saturation indicators. All data is retained locally on industrial-grade flash memory (16 GB) with automatic rollover and exportable via USB or encrypted HTTPS API. Audit trails include operator login events, parameter changes, and alarm acknowledgments—structured to satisfy ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Remote monitoring dashboards support role-based access control (RBAC), email/SMS alerting, and integration with enterprise LIMS or EHS platforms via MQTT or RESTful endpoints.

Applications

This cabinet is deployed in academic research laboratories, pharmaceutical QC/QA facilities, clinical chemistry departments, and contract development and manufacturing organizations (CDMOs) where space-constrained renovations prohibit duct installation. Typical use cases include: long-term storage of analytical reference standards (e.g., polycyclic aromatic hydrocarbons, chlorinated solvents); containment of cytotoxic drug intermediates during formulation development; segregation of incompatible reagents (oxidizers vs. reducers) under monitored conditions; and compliance-driven archiving of stability study samples requiring controlled VOC environments. Its recirculating design also supports LEED v4.1 Indoor Environmental Quality credit optimization.

FAQ

Does the FX-G cabinet require external ducting or wall penetration?
No. It operates as a fully recirculating system and requires only a standard 110–240 V power outlet.
How often must filters be replaced?
Filter service intervals depend on chemical load and exposure profile; typical replacement is every 6–12 months, with real-time saturation alerts generated via the HMI interface.
Can multiple cabinets be managed centrally?
Yes—via the cloud-based HJ IoT platform, which supports fleet-wide monitoring, group configuration, and consolidated compliance reporting.
Is the unit suitable for flammable liquid storage?
It is approved for Class IIIB combustibles and select Class IIIA liquids (flash point ≥93°C); consult the Safety Data Sheet compatibility matrix before storing Class I or II flammables.
What certifications does the cabinet hold?
CE marking (EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU), RoHS 2011/65/EU, and third-party verification against SEFA 9-2020 Annex B performance criteria.