AIRTECH HS Series Horizontal Laminar Flow Clean Benches

Overview

The AIRTECH HS Series Horizontal Laminar Flow Clean Benches are engineered for precision-controlled, particle-free work environments in pharmaceutical QC laboratories, cell culture facilities, microbiology research suites, and medical device assembly areas. These clean benches operate on the principle of horizontal laminar airflow—air is drawn through a pre-filter, conditioned, then passed through a certified HEPA filter (≥99.995% efficiency at 0.3 µm), and delivered across the work surface in a uniform, unidirectional stream parallel to the operator plane. This configuration minimizes turbulence-induced particle resuspension and provides continuous protection of the work area—though not the operator—making it ideal for non-hazardous, contamination-sensitive processes such as media preparation, sterile sampling, and aseptic packaging validation. Unlike vertical laminar flow cabinets, the HS Series directs filtered air horizontally outward from the rear plenum toward the front sash opening, ensuring consistent velocity distribution (>0.3 m/s average across the working plane) and low turbulence intensity (<10% at all points per ISO 14644-3).

Key Features

• Integrated stainless steel work surface with seamless front-curved geometry—designed for ergonomic access, rapid decontamination, and resistance to corrosion from ethanol, isopropanol, and common disinfectants.
• Intelligent LCD color interface with capacitive touch controls: real-time display of average face velocity, HEPA filter differential pressure, UV lamp operational status, and system fault diagnostics (e.g., filter saturation, motor overtemperature, interlock failure).
• Energy-optimized variable-speed centrifugal blower system—adjustable airflow setpoints maintain laminar uniformity while reducing power consumption by up to 25% compared to fixed-speed equivalents.
• Interlocked safety architecture: LED illumination automatically deactivates when UV germicidal lamps are energized; UV lamps cannot be activated unless the front sash is fully closed and the door interlock switch is engaged—compliant with IEC 61010-1 and YY/T 1539–2017 electrical safety requirements.
• Factory-certified performance validation: each unit undergoes individual testing per ISO 14644-1 (particle counting), ISO 14644-3 (airflow visualization and uniformity), and YY/T 1539–2017 (vibration, noise, illumination, and microbial challenge verification) prior to shipment.

Sample Compatibility & Compliance

The HS Series accommodates standard Petri dishes, T-flasks, microcentrifuge tubes, glassware up to 300 mm height, and modular biosafety accessories (e.g., pipette holders, waste trays). All models meet YY/T 1539–2017 requirements for medical clean benches—including microbial reduction efficacy (≥3-log reduction of Bacillus atrophaeus spores under defined UV exposure), structural integrity under static load (≥150 kg distributed load), and electromagnetic compatibility (EMC) per GB/T 18268.26. As Class II registered medical devices in China, they support GLP-compliant documentation workflows and are suitable for inclusion in FDA 21 CFR Part 11–aligned validation protocols when paired with audit-trail-enabled software interfaces.

Software & Data Management

While the HS Series operates via embedded firmware without external PC dependency, its control module supports RS-485 Modbus RTU communication for integration into centralized laboratory monitoring systems (LMS). Optional data logging modules record timestamped airflow velocity, filter ΔP, UV runtime, and alarm events—exportable as CSV for traceability in quality audits. Firmware updates are performed via secure USB interface with cryptographic signature verification, ensuring compliance with IEC 62304 Class B software lifecycle requirements.

Applications

• Aseptic preparation of culture media and reagents in pharmaceutical manufacturing (aligned with EU GMP Annex 1 and USP environmental control expectations).
• Handling of non-pathogenic cell lines during routine passaging and cryopreservation.
• Final visual inspection of terminally sterilized medical devices under controlled particulate conditions.
• Calibration and verification of particle counters and microbial air samplers in ISO/IEC 17025-accredited labs.
• Supporting ISO 13485 quality management system implementation for medical device manufacturers requiring documented cleanroom-adjacent workspaces.

FAQ

What regulatory standards does the HS Series comply with?
It conforms to YY/T 1539–2017 (China’s mandatory standard for medical clean benches), ISO 14644-1 Class 5, and IEC 61010-1 for laboratory equipment safety.
Is operator protection provided by this horizontal flow design?
No—horizontal laminar flow clean benches protect only the product/work surface. Operator protection requires a Class II biological safety cabinet with inward inflow and exhaust filtration.
Can the HEPA filter be replaced in the field?
Yes—filters are accessible from the rear service panel and designed for tool-free replacement using standardized 610 × 610 × 90 mm HEPA modules meeting EN 1822-1 H14 classification.
What is the expected service life of the UV germicidal lamp?
Rated for 5,000 hours of operation; output decay is monitored continuously, and the system alerts users when irradiance falls below 70% of initial UVC intensity (254 nm).
Does the unit support integration with building management systems (BMS)?
Via optional RS-485 gateway module, enabling remote status polling, alarm forwarding, and scheduled shutdown/startup sequences within facility-wide HVAC control networks.