Thuis >

Laatste zaak van het bedrijf over Guangzhou Cleanroom Construction Co., Ltd. Certificeringen

Five Key Points for Choosing the Right Biosafety Cabinet Size Based on Laboratory Area

2026-01-14

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.

Key Point 1: Start with Space — Measure Accurately

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

Key Point 2: Focus on Usable Working Space, Not Just External Dimensions

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.

Key Point 3: Match Cabinet Size to Experimental Needs

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)

Key Point 4: Consider Supporting Equipment and Future Expansion

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.

Key Point 5: Ensure Compliance with Safety Standards

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)

Summary

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.