Class II Type A1 BSC, 4 ft

A Class II Type A1 Biosafety Cabinet (BSC) – 4 ft is a ventilated laboratory enclosure that provides triple-tier protection for personnel, the product, and the environment during low-to-moderate risk microbiological work.

Key Specifications & Features

• Size: 4-foot nominal width (standard mid-size laboratory footprint).
• Airflow Pattern:
• ~70% of air is recirculated through a HEPA filter down onto the work surface.
• ~30% of air is exhausted back into the room (or via an optional canopy/thimble exhaust to the building system).
• Face Velocity: Minimum average inflow velocity of 75 fpm (feet per minute).
• Filtration: Equipped with High-Efficiency Particulate Air (HEPA) filters capturing bacteria, viruses, and particulates.
• Containment Level: Typically suited for Biosafety Level 1, 2, and low-risk Level 3 agents.
• Chemical Restrictions: Volatile toxic chemicals and heavy chemical fumes are not permitted in Type A1 cabinets because a large portion of the air is recirculated internally.