Letzter Unternehmensfall über Guangzhou Cleanroom Construction Co., Ltd. Zertifizierungen

In laboratory planning, the size selection of a biosafety cabinet (BSC) directly affects experimental safety, operational efficiency, and space utilization. A cabinet that is too large wastes valuable laboratory space, while one that is too small can restrict operations and compromise safety.

The key question is: how can you select a biosafety cabinet with the right size and performance for a limited laboratory area?
The following five points provide a practical and efficient decision framework.

Available space is the primary constraint.

• Accurately measure the installation area, including length, width, and ceiling height
• Reserve 30–50 cm clearance at the rear for maintenance and proper airflow
• Avoid locations near doors, walkways, air supply diffusers, or other airflow disturbance sources

General size recommendations by laboratory area:

• < 15 m²: 1.2 m compact model, suitable for single-user operation
• 15–30 m²: 1.2 m or 1.5 m models, balancing efficiency and layout flexibility
• > 30 m²: 1.8 m models or multiple units for high-throughput applications

The nominal size of a biosafety cabinet refers to its external width, not the usable work area.

• Internal working width is typically 20–40 cm narrower than the external dimension
• Standard working depth is generally 750–800 mm
• Recommended internal height is ≥ 600 mm for comfortable operation

⚠ The front access opening height (typically 200–250 mm) is a critical safety parameter and must not be increased, as it will disrupt airflow containment.

• Large culture vessels, stacked racks, or animal dissection work require wider and deeper cabinets
• Routine microbiological work with plates and small containers can be performed in compact units

Typical operation scenarios:

• Single user, low-frequency work: 1.2 m
• Single user, high-throughput work: 1.5 m
• Two-person operation: ≥ 1.8 m (subject to room airflow conditions)

• Determine whether equipment such as centrifuges or vortex mixers will be placed inside the cabinet
• Evaluate potential increases in workload or future research expansion

When space allows, selecting a slightly larger cabinet often provides better long-term value and flexibility.

• Install the cabinet away from doors, windows, HVAC diffusers, and high-traffic areas
• Perform airflow smoke tests after installation to verify containment integrity
• Ensure sufficient clearance for maintenance and annual certification (e.g., EN 12469, NSF/ANSI 49)
• Cabinet type and size must match the laboratory biosafety level (BSL-2, BSL-3)

Choosing the right biosafety cabinet size is not just about fitting the available space—it is a strategic decision involving safety, efficiency, and laboratory planning.

A simple selection logic:
Measure the space → define operational needs → check internal dimensions → plan for growth → comply with standards

A properly sized biosafety cabinet will provide reliable, long-term protection and efficient workflow for your laboratory.