HJ SW-CJ-2K Wall-Mounted Air Purifier for Laboratory Environments

Overview

The HJ SW-CJ-2K Wall-Mounted Air Purifier is an engineered solution for localized air quality control in laboratory, pharmaceutical R&D, and small-scale cleanroom retrofit applications. Designed according to the principles of unidirectional airflow management and high-efficiency particulate filtration, it operates as a self-contained recirculation unit—capable of either internal air purification (closed-loop mode) or continuous supply of filtered outdoor air (window-integrated mode). Its core architecture integrates a low-turbulence centrifugal fan, a certified HEPA filter (tested per sodium flame method per GB/T 6165–2021), and a modular housing optimized for wall mounting at variable heights—ensuring uniform airflow distribution across critical work zones. Unlike centralized HVAC-based cleanroom systems, the SW-CJ-2K delivers Class 5 (ISO 14644-1) equivalent particle removal performance at point-of-use without requiring structural modification, making it especially suitable for QC labs, analytical instrument rooms, and sterile preparation areas where spatial constraints and budget limitations preclude full cleanroom construction.

Key Features

• Wall-mountable design with height-adjustable bracket and configurable multi-point return air inlets—enabling precise targeting of airflow patterns to match room geometry and workflow layout.
• Dual-speed fan control (low/high) maintains consistent face velocity (0.25–0.45 m/s) across filter life, minimizing pressure drop-induced efficiency decay and extending HEPA service intervals.
• Digital programmable controller supporting up to six independent daily time slots; enables automated start/stop cycles and scheduled UV-C disinfection sequences—fully compatible with GLP-compliant lab scheduling protocols.
• Integrated UV-C germicidal lamp (254 nm, optional) and plasma ionization module (optional) provide supplementary microbial inactivation—validated for reduction of airborne bacteria (e.g., Bacillus subtilis spores) and viruses per ISO 15714:2019 methodology.
• Acoustically damped enclosure with vibration-isolated fan mount achieves ≤62 dB(A) operation—critical for noise-sensitive environments such as electrophysiology suites and microbalance laboratories.
• LCD interface with real-time fault diagnostics, error logging, and infrared remote + front-panel dual-mode operation ensures operational continuity during shift changes or remote monitoring scenarios.

Sample Compatibility & Compliance

The SW-CJ-2K is validated for use in non-sterile and low-bioburden laboratory settings where airborne particulate control (≥0.5 µm) and microbial load reduction are primary objectives. It complies with national standards GB/T 14295–2019 (general ventilation filters), GB 50591–2010 (cleanroom construction specifications), and aligns with ISO 14644-1:2015 Annex B for localized air cleanliness verification. While not certified as a standalone ISO Class 5 device, its performance is documented under controlled test conditions per ISO 14644-3:2019 (test methods) when installed per manufacturer-specified clearance and ducting guidelines. For GMP-regulated facilities, the unit supports 21 CFR Part 11–compliant audit trails when integrated with external data loggers recording runtime, filter differential pressure, and UV lamp duty cycle.

Software & Data Management

The embedded microcontroller provides non-volatile event logging—including power-on duration, filter runtime hours, UV exposure cycles, and fault codes (e.g., motor stall, sensor timeout, door-open interlock). All logs are accessible via IR remote menu navigation and exportable via USB port (optional firmware upgrade). No proprietary cloud platform is required; raw data exports as CSV files for integration into LIMS or CMMS platforms. Firmware updates are delivered via signed binary files to ensure integrity and traceability—meeting requirements for software validation under ICH Q9 and EU Annex 11.

Applications

• Local air scrubbing adjacent to fume hoods, gloveboxes, and weighing stations to mitigate cross-contamination risks.
• Retrofitting existing lab spaces into ISO Class 7–8 environments without full cleanroom build-out—particularly effective in chromatography labs and formulation development suites.
• Supplemental air treatment in animal holding rooms where HEPA-filtered air exchange must be maintained independently of building HVAC.
• Protection of sensitive optical instruments (e.g., FTIR spectrometers, laser interferometers) from sub-micron dust accumulation on mirrors and detectors.
• Pre-filtration staging for nitrogen or compressed air lines feeding GC-MS or ICP-MS systems—reducing downstream filter replacement frequency.

FAQ

Can the SW-CJ-2K be used in a Class A (ISO 5) laminar flow hood?
No—it is not designed as a laminar flow device. It provides turbulent mixing filtration and is intended for ambient air quality enhancement, not unidirectional particle sweep.
Is the HEPA filter replaceable by end users?
Yes. The front-access panel allows tool-free filter replacement using standard PPE; replacement interval is typically 12–18 months under continuous operation at rated airflow.
Does the unit meet FDA or EU GMP requirements for pharmaceutical manufacturing?
It satisfies environmental control provisions in EU GMP Annex 1 (2022) Section 5.42 for “supplementary local air treatment” but requires site-specific qualification (IQ/OQ/PQ) to demonstrate compliance within the facility’s overall contamination control strategy.
What is the warranty coverage?
Three years limited warranty on electronics and mechanical components; one year on HEPA filter and UV lamp (consumables excluded).
Can multiple units be synchronized for coordinated operation?
Not natively—but RS-485 Modbus RTU output (optional accessory) enables master-slave timing coordination and centralized status monitoring via PLC or SCADA systems.