HJ FLB-1200 Dual-Person Dual-Blow Air Shower

Overview

The HJ FLB-1200 Dual-Person Dual-Blow Air Shower is an engineered entry-level personnel airlock system designed for controlled transition between non-classified and ISO Class 5–8 cleanroom environments. It operates on the principle of high-velocity, HEPA-filtered laminar air impingement to mechanically dislodge and remove particulate contamination—including skin flakes, textile fibers, and ambient dust—from personnel garments prior to entry into critical zones. Unlike single-blow or sequential-blow configurations, the FLB-1200 integrates two independent opposing nozzle arrays—positioned at shoulder and waist levels—enabling simultaneous front-and-back surface decontamination without requiring user rotation. Its structural frame is fabricated from pre-painted color-coated steel panels with seamless welded corners and electropolished stainless steel internal surfaces, minimizing particle shedding and supporting routine disinfection protocols per ISO 14644-1 and GMP Annex 1 requirements.

Key Features

• Dual-blow architecture with 18 precisely angled nozzles (Φ30 mm), delivering uniform air velocity distribution across both frontal and dorsal body surfaces.
• Interlocked door control logic: outer door actuation triggers immediate fan startup and filter bypass prevention; inner door remains mechanically locked until shower cycle completion.
• Digitally adjustable shower duration (0–60 seconds), programmable via sealed membrane keypad with LED status feedback and audible end-cycle signal.
• Integrated HEPA H13 filter bank (EN 1822-compliant) with ≥99.7% efficiency at 0.5 µm, validated using sodium flame test methodology per IEST-RP-CC001.3.
• Compact external footprint (1300 × 1200 × 2050 mm) optimized for retrofit installation in existing corridor layouts without structural modification.
• Low-power operation (max. 400 W) achieved via energy-efficient EC centrifugal blowers with thermal overload protection and automatic restart delay after power interruption.

Sample Compatibility & Compliance

The FLB-1200 is intended exclusively for personnel decontamination—not for material or equipment pass-through—and complies with fundamental cleanroom interface design principles outlined in ISO 14644-7 and SEMI S2. It supports standard gowning procedures for operators wearing cleanroom suits (e.g., Tyvek® or polypropylene coveralls), bouffant caps, and overshoes. All electrical components meet CE marking requirements under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU). The unit is compatible with facility-wide monitoring systems via optional dry-contact relay outputs (not included) for integration into BMS platforms. While not certified to UL 61010-1 or FDA 21 CFR Part 11, its mechanical interlocks and auditable timer function support GLP/GMP-aligned operational qualification (OQ) documentation.

Software & Data Management

The FLB-1200 operates as a standalone electromechanical device with no embedded firmware, network connectivity, or data logging capability. Timer settings are retained via non-volatile memory during power loss. For regulated environments requiring audit trails, external validation-grade data loggers may be deployed to record door event timestamps, cycle durations, and power-on/off states. Configuration changes require physical access and do not necessitate software updates or cybersecurity controls—reducing validation burden during IQ/OQ/PQ execution.

Applications

This air shower serves as a primary personnel airlock in pharmaceutical manufacturing (non-sterile oral solid dose areas), medical device assembly (Class 7 cleanrooms), semiconductor packaging labs, and academic research clean facilities where ISO Class 7 (10,000) or Class 8 (100,000) environmental control is mandated. It is commonly installed upstream of gowning rooms or directly adjacent to Grade C/D cleanroom entrances. Its dual-person throughput (up to 20 cycles/hour at 30 s/cycle) supports moderate occupancy workflows without bottlenecking. Not recommended for sterile processing isolators or aseptic filling suites requiring unidirectional airflow certification per EU GMP Annex 1 §5.32.

FAQ

Is the FLB-1200 suitable for use in ISO Class 5 cleanrooms?
No—it is rated for transitional use upstream of ISO Class 5 zones and is typically deployed in conjunction with higher-grade air showers or airlocks meeting ISO 14644-3 Class 5 performance criteria.
Can the nozzle velocity be calibrated or adjusted beyond the factory-set 15–20 m/s range?
No—air velocity is fixed by blower motor speed and duct geometry; field adjustment is not supported and would invalidate filter integrity testing.
Does the unit include HEPA filter replacement indicators or pressure differential alarms?
No—filter service intervals must be determined empirically based on particle counter data and scheduled maintenance logs per ISO 14644-3 Annex D.
What certifications accompany the unit upon shipment?
Factory test report (including airflow verification and interlock functionality), CE DoC, and material compliance statement (RoHS, REACH) are provided; third-party cleanroom certification is customer-responsibility.
Is stainless steel construction available as an option?
Standard configuration uses color-coated steel; full 304 stainless steel cladding is available under custom order (model suffix “-SS”) with extended lead time and +35% premium.