HJ AAS-700AR Dual-Blow Air Shower Pass-Through Chamber

Overview

The HJ AAS-700AR Dual-Blow Air Shower Pass-Through Chamber is an engineered personnel decontamination system designed for controlled environments requiring ISO Class 5–8 (Class 100–100,000) cleanroom compliance. It operates on the principle of high-velocity, filtered laminar airflow directed from opposing nozzles—mounted on both left and right side walls—to simultaneously remove particulate contamination from personnel garments, hair, and footwear prior to entry into critical zones. Unlike single-blow configurations, the dual-blow architecture ensures symmetrical particle dislodgement with minimized shadow zones, significantly improving removal efficacy for sub-10 µm airborne particulates. The unit functions as a physical airlock, maintaining pressure differentials between non-classified and classified areas while preventing cross-contamination via unfiltered ambient air infiltration. Its structural design integrates pressure-stabilized interlocked doors—configured to enforce sequential operation—ensuring that only one door opens at a time, thereby preserving room integrity during ingress/egress cycles.

Key Features

• Dual-side nozzle array (8 × Φ30 mm nozzles total) delivering balanced, high-velocity airflow (15–20 m/s) across full human height profile
• Eight certified HEPA filters (600 × 600 × 120 mm, ≥99.97% @ 0.5 µm) mounted in redundant vertical banks for uniform static pressure distribution and extended service life
• Eight pre-filters (850 × 580 × 10 mm) upstream of HEPA banks to capture coarse particulates and extend final filter replacement intervals
• Microprocessor-based control panel with adjustable shower duration (0–60 seconds), real-time cycle status indication, and door interlock monitoring
• Structural enclosure fabricated from polyphenylsulfone-reinforced color-coated steel sandwich panels—non-shedding, corrosion-resistant, and compliant with ISO 14644-1 surface cleanliness requirements
• Energy-optimized fan-motor assembly (1000 W total input power) meeting IEC 60335-1 safety standards for continuous-duty laboratory equipment

Sample Compatibility & Compliance

The AAS-700AR is not a sample analysis instrument but a personnel and material airlock interface—therefore, “sample compatibility” refers to its operational suitability for personnel wearing standard cleanroom garments (e.g., bouffant caps, coveralls, boot covers, gloves) and carrying small-to-medium sized tooling or sealed containers (≤600 mm width). It complies with core cleanroom infrastructure standards including ISO 14644-3 (testing and certification of cleanrooms), ISO 14644-4 (design and construction), and EU GMP Annex 1 (2022 revision) requirements for personnel airlocks in sterile manufacturing. Optional integration with facility BMS supports audit-ready logging per FDA 21 CFR Part 11 when paired with validated data acquisition modules.

Software & Data Management

The embedded controller provides local cycle logging (date/time stamp, duration, door open/close events) stored in non-volatile memory for up to 10,000 entries. While the base unit lacks Ethernet or USB connectivity, it supports optional RS-485 Modbus RTU output for integration into centralized facility monitoring systems. All firmware updates are performed via secure offline programming interface; configuration parameters—including timer presets and alarm thresholds—are protected by dual-level password access to satisfy GLP/GMP change-control protocols. Audit trail functionality meets ALCOA+ principles when deployed with external validated data loggers.

Applications

• Pharmaceutical aseptic processing suites requiring personnel gowning validation prior to Grade A/B zone entry
• Biotechnology labs handling cell culture or viral vector production under biosafety level 2 (BSL-2) containment
• Semiconductor fabrication facilities where sub-micron particle control is essential for photomask handling
• FDA-registered medical device manufacturing cleanrooms subject to 21 CFR Part 820 quality system regulation
• Research institutions operating animal barrier facilities (AAALAC-accredited) requiring strict particulate exclusion at entry points
• Food-grade processing R&D centers implementing HACCP-aligned environmental control strategies

FAQ

What is the recommended maintenance frequency for HEPA and pre-filters?
HEPA filters should be integrity-tested semiannually per ISO 14644-3; replacement is typically required every 18–24 months under continuous operation. Pre-filters require visual inspection monthly and replacement every 3–6 months depending on ambient particulate load.
Can the AAS-700AR be integrated with building management systems (BMS)?
Yes—via optional RS-485 Modbus RTU interface, enabling remote status monitoring, cycle logging, and alarm relay outputs compatible with Schneider EcoStruxure, Siemens Desigo, or Honeywell Enterprise Buildings Integrator platforms.
Does the unit meet FDA or EU GMP requirements for pharmaceutical cleanrooms?
It satisfies mechanical and architectural prerequisites outlined in EU GMP Annex 1 (2022) Section 4.37–4.40 and aligns with FDA guidance on cleanroom airlocks in sterile drug manufacturing; formal qualification (IQ/OQ/PQ) must be executed per site-specific protocols.
Is installation support available outside mainland China?
HJ Purification provides engineering drawings, commissioning checklists, and remote technical supervision; on-site installation services are coordinated through authorized regional partners in Southeast Asia, the Middle East, and Latin America.
What safety certifications does the AAS-700AR hold?
Certified to IEC 60335-1 (Household and similar electrical appliances – Safety), CE-marked per Machinery Directive 2006/42/EC, and RoHS 2011/65/EU compliant for restricted substances.