HJ SW-CJ-1K Stainless Steel Wall-Mounted Air Purifier

Overview

The HJ SW-CJ-1K Stainless Steel Wall-Mounted Air Purifier is an engineered solution for localized air quality control in controlled laboratory environments, cleanroom retrofits, and critical process zones requiring continuous particulate and microbial reduction. Designed per ISO 14644-1 principles for unidirectional airflow support and compliant with USP environmental monitoring expectations for non-sterile compounding and low-risk aseptic preparation areas, this unit operates on a recirculating filtration principle—drawing ambient air through a multi-stage barrier system (pre-filter + high-efficiency particulate air [HEPA] filter, class H13 per EN 1822-1), followed by in-line ultraviolet germicidal irradiation (UV-C, 254 nm) to inactivate airborne microorganisms. Its wall-mounted architecture eliminates floor space requirements and enables strategic placement near workbenches, laminar flow hoods, or entry vestibules to reinforce zone-specific air cleanliness without reliance on full-room HVAC upgrades.

Key Features

• Stainless steel (SUS304) housing for corrosion resistance, cleanability, and compliance with GLP laboratory infrastructure standards.
• Dual-speed centrifugal blower delivering adjustable airflow between 0.3–0.6 m/s—optimized for both quiet background operation and enhanced circulation during active use periods.
• Integrated UV-C lamp (254 nm, ≥30 µW/cm² irradiance at 1 m) with safety interlock to prevent exposure during maintenance; lamp life monitored via software-based hour counter.
• Intelligent digital controller with LCD interface supporting up to six programmable daily disinfection cycles—ideal for unattended overnight or weekend decontamination protocols.
• Real-time fault diagnostics including filter clogging detection, UV lamp failure alert, and motor overload protection—all displayed via alphanumeric code on the front panel.
• Infrared remote control with full operational parity to manual interface, enabling safe activation/deactivation from outside the containment zone.
• Modular duct interface: 160 mm nominal diameter PVC coupling compatible with standard laboratory ventilation infrastructure and pressure-balanced room designs.

Sample Compatibility & Compliance

The SW-CJ-1K is intended for continuous-duty operation in ambient indoor environments (15–35 °C, RH ≤80%). It does not generate ozone above 0.05 ppm (per ANSI/UL 867 testing protocol) and is certified for non-ozone-emitting operation under GB/T 18801–2015 (Chinese National Standard for Air Purifiers). While not classified as medical device per FDA 21 CFR Part 820, its design aligns with ISO 14644-3 testing methodologies for airborne particle concentration measurement and supports GMP Annex 1 (2022) recommendations for supplemental local air purification in classified zones. The unit meets CE marking requirements for electromagnetic compatibility (EN 61000-6-3) and low-voltage safety (EN 60335-1).

Software & Data Management

The embedded microcontroller logs runtime, UV exposure duration, and fault events with timestamped records retained for ≥30 days. Data export is not supported via USB or network interface; however, audit-ready event history can be manually reviewed on the LCD display using navigation keys. All time-based operations comply with ALCOA+ data integrity principles when used in conjunction with laboratory logbooks—ensuring attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available records per FDA 21 CFR Part 11 guidance for non-electronic systems.

Applications

• Supplemental air cleaning in ISO Class 7–8 laboratories performing microbiological assays or handling low-to-moderate risk biological agents.
• Retrofit air hygiene enhancement in existing fume hood corridors or sample preparation rooms lacking dedicated cleanroom HVAC.
• Localized contamination control adjacent to weighing stations, dissolution apparatus, or analytical balance enclosures where particle resuspension is a concern.
• Supporting ISO 14698-1 biocontamination control plans through scheduled UV-assisted disinfection cycles during non-operational hours.
• Temporary deployment during facility validation studies (e.g., smoke studies, airflow visualization) to assess directional flow patterns and turbulence mitigation.

FAQ

Does the SW-CJ-1K meet ISO 14644-1 Class 5 (ISO Class 5) performance at the outlet?
Yes—when operated at high speed with a clean HEPA filter, it achieves ≤3.5 particles ≥0.5 µm per liter at the discharge port, satisfying the particle concentration requirement for ISO Class 5 (equivalent to USP Grade A at point-of-use), though full-room classification requires integrated HVAC verification.
Can the unit be installed in explosive or high-humidity environments?
No—it is rated for general laboratory use only (IP20 enclosure) and must not be deployed in hazardous locations (ATEX/IECEx zones) or areas exceeding 80% relative humidity without external dehumidification.
Is UV-C lamp replacement tracked or validated?
Lamp operating hours are stored in non-volatile memory and displayed on startup; users are advised to replace lamps after 8,000 hours or upon diagnostic alert—validation of germicidal efficacy requires separate biological indicator challenge tests per ISO 15714.
What maintenance intervals are recommended?
Pre-filters should be cleaned weekly; HEPA filters replaced every 12 months under typical lab usage (or sooner if pressure drop exceeds 250 Pa); UV-C lamps replaced annually or per hour counter readout.
Is third-party calibration or certification available?
HJ provides factory-assembled unit verification reports (airflow, noise, UV intensity). Full ISO 17025-accredited calibration services are available through authorized regional partners upon request.