Biological Safety Cabinets Сlass II — Articles

Biosafety cabinets are ventilated enclosures that use HEPA (High-Efficiency Particulate Air) filters to filter out all the pathogenic biological agents and microorganisms from the workspace environment and disseminate unpolluted air to the environment. The Class II Biological Safety Cabinet, also known as BSC, is specialized to provide environmental, product, and personnel protection.

The Class II Biosafety Cabinet with a laminar flow is a new generation of safety cabinets which are easily installable in a laboratory, without any loss of working space.

Class II Biosafety Cabinet Features

Class II laminar flow cabinets are used in hospitals, clinics, and research and pharmaceutical laboratories that work with pathogenic biological agents (PBA) and microorganisms. Thus, it is vital for the cabinet to meet requirements for the protection of the environment, product, and personnel attained via the following:

1. Air inflow through front access opening that creates an air curtain protecting the work chamber from any access of contaminants into the work chamber or any escape of hazardous aerosols out of it.

2. HEPA filtered unidirectional vertical downflow ensuring sterile work environment in the work zone;

3. HEPA filtered air outflow exhausted to the room.

Class II BSC Purpose

The Class 2 Biosafety Cabinet (BSC) helps in protecting the user, the environment, and the experimental material in use. It is the most widely used type of cabinet in biomedical and microbiological laboratories.

An air curtain from a laminar flow in the work opening prevents any escape of the pathogens from the work chamber and, thus, guarantees the protection of the personnel. Product protection, however, has a different approach. The HEPA filtered downward laminar flow specializes in protecting the material that is being used inside the cabinet. The exhaust HEPA filter ensures that the air passing through it is contaminant free and, thus, guarantees environmental protection for biological safety. Filtered air can either be circulated back into the laboratory (Class II) or can be directed out of the room (Class II Type B).

Specifications for Class 2 Cabinets

• The cabinet work chamber has the maximum large size with the minimal external cabinet dimensions.
• Laminated safety glass
• Arm support
• Laminar flow speed and clogging level of the filter is shown on the main screen
• UV light and fans with timer for easier programming
• Pullout UV unit 

Comfortable and easy to use

The microbiological safety cabinet is designed in a way that provides a comfortable way to work preventing any fatigue and guaranteeing a working posture that is safe for the operator. A sloped window ensures that the operator has a comfortable and efficient posture.

Complete access to the front chamber of the Class II Microbiological Cabinets is attained through the front window. This window is easy to clean and allows large materials and accessories to enter the chamber.

For maximizing the light entering the the chamber, transparent glass is used to make the side windows. This improves the visibility and provides a good sense of space to the operator.

By providing personnel, product, and environmental protection, these laminar air flow cabinets ensure maximum control over the work processes and manipulations. They eliminate any exposure of personnel to airborne biological microorganisms which can be of potential danger. The size of a lab needs to be considered before buying the Class 2 Cabinet. For maximum protection, these cabinets should be the first choice of a customer!