In the world of laboratory sciences, preserving a safe and secure environment is of utmost importance. Biological safety cabinets or BCSs are at the forefront of ensuring that the laboratory personnel and the samples being handled remain uncontaminated. 

Moreover, these biological safety cabinets (BSCs) play a key role in safeguarding both laboratory personnel and the samples being processed from contamination. The main advantage of these cabinets is that they are designed to create a contained workspace that shields the user, the environment, and the experimental materials from exposure to harmful agents. There are various types of BSCs cabinets that cater to the different needs in the laboratory environment. Hence, this blog will cover the biological safety cabinet types which will help in choosing the right BSC for safety and maintain integrity of the work being done.

What are the Biological Safety Cabinet Types and Their Uses?

Purpose and Need of Biological Safety Cabinets- Firstly, let us understand what Biological Safety Cabinets are. BSCs are engineered cabinets that are designed to provide an enclosed workspace that protects the user, the environment, and the experimental material from exposure to harmful agents. Whether handling hazardous pathogens, or working with delicate biological samples, these safety cabinets serve as a crucial barrier between the user and potentially harmful biological agents. 


Advantages- For ensuring a sterile and safe environment, the safety cabinets are designed to protect three primary elements namely: personnel, product and environmental protection. These cabinets are designed for personal protection by providing a shield from getting exposed to harmful aerosols and other dangerous( toxic agents). These biological samples and products safeguard the internal environment by shielding biological samples from being contaminated.

As we know that BCS are essential tools offering various types of protection from exposure to infectious agents and hazardous materials. Let us now quickly cover the biological safety cabinet types along with their unique functions and operational mechanism. There are three main types/ classes of BSC: Class I, Class II, and Class III. The segment will delve into each class separately, serving different purposes in research settings.

1. Class I Biological Safety Cabinet- A Class I BSC is primarily designed to protect the laboratory environment that involve low to moderate levels of biohazards, such as microbiological manipulations and tissue culture. However, it does not provide complete protection by offering personnel and environmental protection but not product protection.

  • Mechanism- The air is drawn into the cabinet through a front opening and then exhausted through a HEPA filter. The inward air creates a negative environment, preventing harmful agents from escaping the cabinet.
  • Key features- They have inward airflow, HEPA filtration and open front design with adjustable sash or barrier.
  • Advantages– Cost effective and easy to operate.

2. Class II Biological Safety Cabinet- The Class II offers a balance between protection for personnel, the environment and the products being handled. These safety cabinets are designed from the materials that can withstand long- term durability and consistent performance in demanding laboratory settings. Moreover, they are further divided into three subtypes: Class II A, Class II B1, and Class II B2, each having specific airflow patterns and protection levels.

  • Mechanism- There is a dual filtration that ensures both incoming and outgoing air are free from harmful contaminants. In Class II, the vertical laminar airflow protects the product by drawing the air into the cabinet through a front opening and then exhaust through a HEPA filter. The portion of the air is recirculated within the cabinet and remaining air is exhausted outside providing maximum protection for all the users.
  • Key features- They have ergonomic work surfaces including Stainless Steel Construction and  HEPA Filtration. 
  • Advantages- It provides a high level of protection for users and products. 

3. Class III Biological Safety Cabinet- The Class III  provides the highest level of protection for both the user and the environment. These fully enclosed cabinets with a sealed viewing window and glove ports are commonly used in the laboratories where the sterile conditions are critical. 

  • Mechanism- Class III BSCs are entirely enclosed that prevents any direct contact between the user and the internal environment, ensuring maximum containment. Air entering the cabinet is filtered through a HEPA (High-Efficiency Particulate Air) filter and exhausted from the cabinet after passing through a HEPA filter or is subjected to high-temperature incineration. This provides an additional safety and ensures that no contaminants are released into the environment. 
  • Key features- They have  dual HEPA filtration, glove ports, sealed constructions and interlocking system. 
  • Advantages- They have the comprehensive and highest level of filtration system including both primary and secondary HEPA filters, which minimizes the risk of accidental exposure to dangerous pathogens or toxic substances.

There are several factors while considering the BCS like level of biohazard, nature of work, regulatory requirements and layout. Let us quickly discuss the prominent name in the biological safety cabinet, Vadodara Gujarat.

Why is Shapers Lab Considered a Preferred Solution for Your Biological Safety Cabinet Requirements in Vadodara?

BCSs are indispensable in modern laboratories that protect both personnel and products from contamination and exposure to harmful agents. The various types of BSCs- Class I, Class II, or Class III provide a distinct level of protection, making it crucial to select the one that best suits your specific requirement. We know that the choice of the appropriate BCS types depends on the specific requirement of the research and testing environment, including the type of work being performed and the level of protection needed.

Conclusion- The different types of biological safety cabinet types are crucial for selecting the appropriate cabinet for specific laboratory applications. Please contact one of the renowned BSC’s manufacturers that can provide optimal protection and performance, ensuring the safety and efficiency of research activities. Shapers Lab stands out as the only laboratory and research furniture that guarantees safety, durability and precision in the research appliances. Hence, whether you are in need of a Class I, Class II, or Class III, our experts are equipped with the finest tools for your success.

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