• Restricted Access Barrier System (RABS)

    LAF + RABS (Restricted Access Barrier System)
    Protect Your Critical Aseptic Process with ISO Class 5 Laminar Airflow
    Customized LAF + RABS Systems for Pharmaceutical, Biotechnology & Sterile Manufacturing

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    Restricted Access Barrier System
Restricted Access Barrier SystemRestricted Access Barrier System
Restricted Access Barrier System
Restricted Access Barrier System
Restricted Access Barrier System
Restricted Access Barrier System
Restricted Access Barrier System inside
Restricted Access Barrier System inside

What Is a Restricted Access Barrier System

In modern aseptic processing, compounding, and fill-finish operations, contamination control leaves zero room for error. RABS (Laminar Air Flow Restricted Access Barrier System) is an aseptic containment solution that combines ISO Class 5 unidirectional airflow with a restricted physical barrier to minimize contamination during pharmaceutical manufacturing.

  • Operator Protection: Physical physical barrier minimizes direct human intervention and particulate shedding.

  • Product Protection: H14 GEL HEPA filtered unidirectional airflow sweeps away contaminants instantly.

  • Process Versatility: Seamlessly adaptable for passive RABS (pRABS) or active RABS (aRABS) configurations depending on your containment needs.

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How Does a RABS System Work ?

Flair custom cleanroom equipment manufacturer

1. HEPA-filtered Air Supply

Provides clean airflow into the working chamber

Flair custom cleanroom equipment manufacturer

2. Physical Separation

Full Visibility,Rigid panels isolate critical processes

Flair custom cleanroom equipment manufacturer

3. Validation Process

Factory Acceptance Test (FAT)

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4. Continuous Monitoring

Pressure, airflow and operating status are monitored

Main Components for Restricted Access Barrier Systems(RABS)

Flair custom cleanroom equipment manufacturer

1. Dual-Stage Air Filtration

H14 GEL HEPA filter+G4pre filter,At a uniform velocity (0.45 m/s+/-20%)

Flair custom cleanroom equipment manufacturer

2. Transparent walls

Such as polycarbonate, tempered glass, or PETG featuring glazed sliding or hinged doors, integrated glove ports。

Flair custom cleanroom equipment manufacturer

3. SUS304 Stainless Steel Construction

SUS304/316L Stainless Steel,Corrosion resistance,Easy cleaning

Flair custom cleanroom equipment manufacturer

4. PLCTouch screen controller

Touchscreen HMI,Provides intuitive operation and comprehensive monitoring

Flair custom cleanroom equipment manufacturer

5. DOP/PAO ports

DOP/PAO testing ports，Fully compatible with GMP validation.

Flair custom cleanroom equipment manufacturer

6.Dwyer Differential Pressure

Real-time pressure indication

Flair custom cleanroom equipment manufacturer

7.EC Fan

Lower power consumption,Lower operating costs,Variable speed control

Flair custom cleanroom equipment manufacturer

8.Compliance with International Standards

EU GMP Annex 1 &cGMP Guidelines,ISO 14644 Cleanrooms,EN1822 HEPA Filter Standard

Key Features of Restricted Access Barrier System

  • SUS304 /316 Stainless Steel plate

    premium SUS304 stainless steel,Corrosion resistance,GMP-friendly design

  • Intelligent PLC & Differential Monitoring

    Siemens/Omron PLC automation providing real-time air velocity  (0.45m/s, digital pressure  alarms, audit trails, and touch-screen HMI control.

  • Grade A ISO 5 Clean Environment

    Provides controlled airflow for critical aseptic operations

  • H14 GEL HEPA Filtered +G4 pre filter

    H14 GEL HEPA Filtered +G4 pre filter,two stage filtering system

  • Rigid Barrier Protection

    Reduces contamination caused by personnel intervention

  • Glove Port Operation

    Enables safe operation without opening the barrier

  • GMP Compliant Design

    Designed for pharmaceutical aseptic processes

  • Validation-Ready Design

    Engineered to simplify qualification & regulatory compliance

Flair custom cleanroom equipment manufacturer

Technical Specifications of RABS

Parameter Standard Specification
Product Name Laminar Air Flow + Restricted Access Barrier System (LAF + RABS)
Cleanliness Classification ISO5 Class 100 (Grade A) Working Zone
Airflow Type Vertical Unidirectional (Laminar) Airflow
Average Air Velocity 0.45 m/s ±20% (Adjustable: 0.30–0.70 m/s)
Filtration System Dual-stage Filtration (G4 Pre-filter + H14 GEL HEPA Filter)
HEPA Filter Grade H14 Gel Seal HEPA Filter
Filtration Efficiency ≥99.995% @ MPPS (EN1822)
Housing Material SUS304 Stainless Steel （standard)
Optional Material SUS316L Stainless Steel
Internal Surface Finish Smooth Polished Finish, Hygienic Design
Viewing Panels Tempered Safety Glass
Lighting LED Cleanroom Lighting/Yellow lighting option
Illuminance ≥500 Lux
Noise Level ≤65 dB(A)
Differential Pressure Monitoring Dwyer Differential Pressure Gauge (Standard)
PAO /DOPTesting Ports Standard Upstream & Downstream Ports
Fan Type Energy-efficient EC Fan (Standard)
Airflow Control Variable Speed Controller / PLC Control (Optional)
Control Interface Touchscreen HMI (Standard)
Alarm Functions Airflow, Filter, Pressure & Fault Alarms (Optional)
Power Supply 220V/50Hz, 380V/50Hz, 415V/50Hz, 480V/60Hz or Customized
Protection Rating IP54 (Standard), Higher Ratings Available Upon Request
Working Temperature 18–26°C (Recommended Cleanroom Conditions)
Relative Humidity 45–65% RH (Application Dependent)
Standard Dimensions Customized According to Project Requirements
Installation Type Floor-mounted / Integrated Production Line
Qualification Support FAT, SAT, IQ, OQ, PQ Documentation Available

Case Study:RABS Solutions

Open RABS (oRABS)

customized LAF + RABS system for aseptic pharmaceutical manufacturing

  • Project Snapshot: Custom Active RABS (aRABS) for a European Biopharmaceutical Fill-Finish Line.

  • Client Challenge: The client required a modular Grade A containment barrier that could integrate directly onto an existing high-speed vial filling line with strict ceiling height limitations.

  • Flair Solution: Our engineering team designed a low-profile aRABS featuring motorized sliding glass doors, integrated Siemens PLC monitoring, and custom-positioned glove ports. The unit passed EU GMP Annex 1 particle recovery and smoke studies on the first deployment, ensuring zero downtime for the client’s manufacturing schedule.

Closed RABS (cRABS)

ISO Class 5 Restricted Access Barrier System
  • Independent airflow control
  • Higher contamination control
  • Suitable for critical applications

Customized Restricted Access Barrier System Manufacturer

We provide customized RABS solutions according to pharmaceutical processes, cleanroom layouts, production equipment and GMP requirements.

  • Size customization
  • Glove port quantity
  • Material selection
  • Control system
  • Integration design
Customized ISO5 RABS-3Dview
Customized ISO5 RABS-3Dview
Customized ISO5 RABS-3Dview
Custom Class100 GMP RABS+LAF
Custom Class100 GMP RABS+LAF
Customized Restricted Access Barrier System housing
Customized Restricted Access Barrier System housing
Customized ISO5 /class100 RABS-drawing
Customized ISO5 /class100 RABS-drawing

RABS vs Laminar Flow Hood vs Isolator

Feature Laminar Flow Hood (LAF) RABS (Restricted Access Barrier System) Isolator
Physical Barrier None (Open-front configuration) Rigid glass/polycarbonate walls with glove ports Completely sealed, pressure-tight enclosure
Operator Access Unrestricted access to the work zone Restricted access via integrated glove ports & sliding doors Strictly restricted via glove ports or half-suits
Cleanliness Standard ISO Class 5 / EU GMP Grade A (local zone) ISO Class 5 / EU GMP Grade A ISO Class 5 / EU GMP Grade A
Sterilization Method Manual surface wipe-down (IPA / Sporicides) Manual wipe-down or semi-automated cleaning Automated gaseous bio-decontamination (VHP)
Airflow Dynamic Unidirectional vertical or horizontal laminar flow Unidirectional laminar downflow with return paths Recirculated or exhausted laminar flow through tight seals
Capital Investment Low Moderate to High Premium (Very High)
Operator Ergonomics Maximum freedom of movement High ergonomic flexibility and intervention capability Moderate (restricted entirely by glove reach)

RABS industrial applications&solutions

Flair designs, manufactures, and exports Cleanroom RABS solutions to a wide spectrum of high-technology industrial sectors globally:

  • Pharmaceutical & Biopharmaceutical Manufacturers: Global drug product innovators requiring strict adherence to FDA cGMP and EU GMP standards.

  • Contract Development and Manufacturing Organizations (CDMOs): High-throughput facilities requiring adaptable, modular containment systems for multiproduct manufacturing lines.

  • Vaccine Production Facilities: High-volume immunization manufacturing plants needing absolute barrier security during live viral vector handling and filling.

  • Life Science Research Institutes: University laboratories and clinical trial centers conducting cutting-edge biomedical research.Cell and gene therapy processing, stem cell research, and viral vector handling.

  • Advanced Electronics & Micro-Optics: Facilities requiring specialized ultra-clean laminar flow enclosures for contamination-sensitive micro-components.

  • Sterile Compounding & Pharmacy: Centralized intravenous admixture services (CIVAS), total parenteral nutrition (TPN), and chemotherapy preparation.

  • Medical Device Assembly: High-precision sterile component assembly and sensitive electronic sensor packaging.

Applications of Restricted Access Barrier Systems

Flair’s products are widely applied in these industries below and can meet the needs of advanced manufacturing processes.

Pharmaceutical Filling with RABS
Pharmaceutical Filling
Biopharmaceutical Production with RABS
Biopharmaceutical Production
Physical Separation for RABS System
Chemical Laboratories

FAQs

Find answers to frequently asked questions about our products. See the most common topics and more. Any other questions just feel free to contact us.

Full name is Restricted Access Barrier System.

A RABS is a cleanroom containment enclosure combining rigid physical barriers and laminar airflow to isolate sensitive sterile processes from human operators.

RABS provides barrier separation inside cleanrooms, while isolators offer a more complete enclosed isolation environment.

A RABS typically maintains ISO Class 5 (ISO 14644-1) or EU GMP Grade A conditions in the critical work zone.

Yes, dimensions, airflow, glove ports and control systems can be customized.

The nominal downward airflow velocity is maintained at $0.45 m/s+/-20%

Terminal H14 GEL HEPA filters are generally replaced every 12 to 24 months based on differential pressure drop and annual integrity test results.G4 pre filter should be replaced per 3-6 months;

Yes, our systems are engineered to meet or exceed EU GMP Annex 1 requirements regarding human intervention reduction and Grade A containment.

Pharmaceutical manufacturing, biotechnology, sterile compounding pharmacies, vaccine production, and advanced medical device assembly.

Yes, custom RABS units are specifically engineered to house and enclose automated vial, syringe, and liquid filling machinery.

Yes, comprehensive FAT protocols and documentation are executed at our manufacturing plant prior to crating and export.

Depending on frequency of use and sterilization cycles, EPDM or Hypalon gloves typically require routine inspection and periodic replacement.

Yes, glove port height, spacing, and port ring dimensions are customized based on ergonomic studies and client preference.

Yes, modular RABS units are designed for straightforward assembly and integration into pre-existing cleanroom.

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