AIRTECH SW-CJ-2F & SW-CJ-2FD Vertical Laminar Flow Clean Benches

Overview

The AIRTECH SW-CJ-2F and SW-CJ-2FD are vertically oriented laminar flow clean benches engineered for consistent particulate control in non-sterile but contamination-sensitive laboratory workflows. Designed per ISO 14644-1 Class 5 (formerly US FED STD 209E Class 100) performance requirements, these units maintain a unidirectional vertical airflow—generated by a low-turbulence centrifugal blower—passing through certified HEPA filters (≥99.99% efficiency at 0.3 µm) to deliver uniform, particle-free air across the work surface. Unlike biosafety cabinets, clean benches provide personnel protection only indirectly; their primary function is product protection during aseptic handling of cell cultures, microbiological media preparation, pharmaceutical compounding, and electronics assembly where operator-generated contaminants must be excluded from the critical work zone. The SW-CJ-2F supports dual-user operation with access from both front and rear sides, while the SW-CJ-2FD offers front-side-only access—optimized for wall-mounted or bench-integrated installations requiring minimal footprint depth.

Key Features

• Monolithic 304 stainless steel work surface—electropolished and seamless—to resist corrosion, inhibit microbial adhesion, and facilitate validated cleaning protocols.
• Patented infinitely adjustable sash system enabling precise ergonomic positioning without mechanical backlash or airflow disruption.
• Digital microprocessor-based control panel with tactile membrane switches, providing real-time status indication for fan speed (three-step adjustment), UV lamp, and illumination circuits.
• UV lamp and fluorescent lighting interlocked to prevent simultaneous activation—ensuring operator safety during decontamination cycles.
• Programmable UV timer with start/stop scheduling and runtime logging—supporting routine maintenance compliance and audit-ready documentation.
• Pre-filter module mounted externally for rapid removal, washing, and reinstallation—reducing downtime and extending main HEPA service life.
• Structural integrity reinforced via cold-rolled steel chassis finished with antimicrobial electrostatic powder coating (ivory white RAL 9010), tested for chemical resistance per ISO 2812-2.
• Four locking omnidirectional casters rated for static loads ≥200 kg—enabling secure relocation and stable anchoring in GMP-aligned lab environments.

Sample Compatibility & Compliance

These clean benches accommodate standard Petri dishes, multi-well plates, glassware up to 300 mm height, and modular incubator accessories within the defined work envelope (1360 × 690 × 520 mm). All models undergo factory validation per ISO 14644-3 Annex B for airflow uniformity, particle concentration, and recovery time. Certificates of conformance include traceable calibration of anemometers and particle counters (TSI 9565-B and PMS LASAIR II). Units comply with GB/T 25225–2010 (Chinese national standard for clean benches), IEC 61010-1:2010 (safety requirements for electrical equipment), and EN 60335-1:2012 (household and similar electrical appliances). While not classified as medical devices under FDA 21 CFR Part 820, they meet essential design criteria referenced in USP <797> for environmental control in sterile compounding facilities when integrated into validated facility systems.

Software & Data Management

No embedded software or network connectivity is provided; operational data logging is hardware-based and non-volatile. The digital interface records cumulative runtime for fan motor, UV lamp, and HEPA filtration system—accessible via front-panel display without external tools. All time-stamped values persist through power interruption and support preventive maintenance planning per ISO 13485:2016 clause 7.5.3.2 (monitoring and measurement equipment). Optional external data acquisition modules (e.g., RS-485 to Modbus RTU converters) may be interfaced for integration into centralized lab infrastructure management platforms—subject to site-specific validation per GAMP 5 guidelines.

Applications

• Aseptic transfer of mammalian and insect cell lines in academic and industrial biotechnology labs.
• Preparation of culture media, reagents, and dilution series under controlled low-bioburden conditions.
• Handling of sensitive optical components and microelectromechanical systems (MEMS) during prototyping.
• Non-invasive instrumentation setup for spectroscopy, microscopy, and gravimetric analysis where airborne particulates compromise measurement fidelity.
• Support function in ISO Class 7/8 cleanrooms—acting as localized ISO 5 buffer zones for high-value sample manipulation.

FAQ

What is the difference between SW-CJ-2F and SW-CJ-2FD?
The SW-CJ-2F features dual-sided access (front and rear), allowing two operators to work simultaneously from opposite sides. The SW-CJ-2FD provides front-side-only access, with a sealed rear panel—ideal for placement against walls or integration into linear lab benches.
Is HEPA filter replacement user-serviceable?
Yes. HEPA filters are accessed via removable rear panels and installed using standardized gasketed frames. Replacement intervals depend on ambient air quality and usage frequency; typical service life ranges from 12 to 24 months under continuous operation in ISO 8 environments.
Does this unit meet FDA or EU GMP requirements?
The bench itself is not a GMP-regulated device, but its ISO 5 performance, validated airflow profile, and documentation package support qualification activities required under EU Annex 1 and FDA guidance for aseptic processing environments.
Can the UV lamp be operated while the fan is running?
No. The safety interlock prevents concurrent operation of UV irradiation and laminar airflow—eliminating ozone generation and ensuring personnel protection during active decontamination cycles.
What electrical safety certifications apply?
Units conform to IEC 61010-1:2010 for laboratory equipment, including dielectric strength testing, leakage current limits (<0.75 mA), and mechanical stability assessments per Clause 19.