Esco Airstream AB2-S-CN Class II Type B2 Biosafety Cabinet

Overview

The Esco Airstream AB2-S-CN is a certified Class II, Type B2 biosafety cabinet engineered to deliver simultaneous protection of personnel, product, and environment in applications involving volatile radioactive nuclides, toxic chemicals, and high-risk biological agents. Unlike recirculating Class II A2 cabinets, the AB2-S-CN operates on a total-exhaust principle: 100% of the inflowing air passes through a ULPA filter before being ducted externally—eliminating any internal air recirculation. This configuration ensures zero risk of cross-contamination from hazardous vapors or aerosols within the laboratory space. The cabinet adheres strictly to the performance and safety requirements defined in NSF/ANSI 49-2023 (U.S.), EN 12469:2020 (EU), and YY 0569-2011 (China), making it suitable for GLP-compliant research, pharmaceutical QC labs, and BSL-2/BSL-3 hybrid workflows requiring chemical-biological dual containment.

Key Features

• ULPA filtration system with ≥99.999% efficiency against MPPS (typically ~0.12 µm), validated per ISO 14644-3 and IEST-RP-CC001.7 test protocols
• Sentinel Gold™ microprocessor controller with real-time monitoring of inflow velocity, downflow velocity, and filter differential pressure—automatically compensates for filter loading to maintain consistent face velocity
• Dynamic Negative Pressure Containment Technology: maintains stable inward airflow across the work opening even under variable room pressure fluctuations, preventing outward leakage
• Seamless, one-piece stainless steel work surface—no welds, seams, or fasteners—to eliminate microbial harborage points and simplify decontamination
• ISOCIDE® antimicrobial coating applied to all exposed cabinet surfaces (including sash, front grille, and side panels), inhibiting growth of bacteria, fungi, and mold per ISO 22196:2011
• ECM (Electronically Commutated Motor) DC blower system delivering high static pressure capability with <1.2 kW power consumption at rated airflow—reducing operational cost by up to 40% vs. conventional AC motor systems
• Ergonomic design including integrated armrest positioned 50 mm above the work surface to promote neutral wrist posture and prevent accidental obstruction of the front intake grille

Sample Compatibility & Compliance

The AB2-S-CN accommodates standard microbiological procedures, cell culture manipulations, and handling of low-to-moderate volatility chemical reagents (e.g., chloroform, ethidium bromide, formaldehyde). It supports safe operation with radioisotopes such as ³H, ¹⁴C, and ³²P when used with appropriate secondary containment and exhaust ducting compliant with local radiation safety regulations. All structural and performance validations are traceable to accredited third-party testing laboratories. Certification documentation includes full test reports for airflow visualization (smoke studies), filter integrity (DOP/PAO scanning), and alarm response verification—fully auditable under FDA 21 CFR Part 11 and EU Annex 11 requirements for electronic records and signatures.

Software & Data Management

The Sentinel Gold™ controller logs time-stamped operational parameters—including face velocity, downflow velocity, filter delta-P, UV lamp usage hours, and alarm events—via RS-232 serial interface. Data export is compatible with LIMS integration and can be parsed into CSV format for trend analysis. Optional Esco Connect™ software enables remote monitoring, configurable alert thresholds (email/SMS), and automated report generation aligned with ISO/IEC 17025 quality management system documentation. Audit trails comply with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) for regulatory submissions.

Applications

• Preparation of sterile pharmaceutical compounds where chemical fumes must not re-enter the lab environment
• Handling of genetically modified organisms (GMOs) under dual chemical–biological containment mandates
• Radioisotope labeling workflows in molecular imaging and drug metabolism studies
• Production of viral vectors under cGMP conditions requiring strict environmental segregation
• High-containment diagnostics in public health laboratories processing emerging pathogens with co-existing chemical hazard profiles

FAQ

Does the AB2-S-CN require dedicated external ductwork?
Yes. As a Type B2 cabinet, it must be connected to a hard-ducted exhaust system with balanced make-up air supply to maintain negative pressure balance and prevent room depressurization.
Can the ULPA filter be replaced in-house?
Filter replacement requires certified field service technicians due to required post-installation integrity testing (e.g., PAO scan) and recalibration of airflow sensors—performed in accordance with ISO 14644-3 Annex B.
Is the ISOCIDE® coating effective against SARS-CoV-2?
While ISOCIDE® demonstrates efficacy against enveloped viruses including coronaviruses in controlled surface challenge tests (ASTM E1053), it is not a substitute for routine disinfection; its role is long-term bioburden reduction between cleaning cycles.
What maintenance intervals are recommended?
Annual certification per NSF/ANSI 49 is mandatory; quarterly verification of alarm functionality and monthly visual inspection of gaskets and sash movement are advised under institutional biosafety protocols.