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Class 3

Class 3 microbiological safety cabinet

Class 3 microbiological safety cabinet

This cabinet is a so-called glove box. This cabinet provides protection to the user, product and environment. The difference to a class II cabinet is that a class 3 is a closed system with a under pressure. The user is not in direct contact with the product inside. It is handled with gloves that are attached to the cabinet, hence the nickname ‘glove box’.
The BW3 microbiological safety cabinet provides a safe working chamber for the operator and environment alike when handling hazardous materials and performing biological research. The cabinet’s construction is sealed and airtight. Work is performed mechanically with gloves. The air inside the cabinet is filtered, and the exhaust system prevents particles from escaping.

Kojair has the following class 3 microbiological safety cabinet in their product range the BW3. For more information about our class 3 microbiological safety cabinet the BW3, click here.


General information: biosafety cabinet

If you value safety at work and you work with bio contaminated materials, choose a biosafety cabinet by Kojair Tech Oy! Our biosafety cabinets are made of high-quality materials and are silent, safe and beautifully designed. Furthermore, we have integrated several SMART innovations into the cabinets, all of which benefit the end-user.

We have achieved a level of ergonomics that is hard to match. Our biosafety cabinet offers comfort and enables you to enjoy your work. The reason for this is simple; it’s designed for you!

“Biosafety cabinets certified according to European Standard EN 12469″

Biosafety cabinets are divided into three different classes:

The classification refers to the level of protection offered by the biosafety cabinet. The class 2 biosafety cabinet is the most common type.

Class 1 biosafety cabinet

In a class 1 biosafety cabinet protection applies only to the user and environment, not to the product.
The working principles of a class 1 biosafety cabinet are as follows: air is sucked from the room to the cabinet and it’s table top. The air sweeps the products and protects the user from possible harmful particles of the products.

Class 2 biosafety cabinet

The class 2 biosafety cabinets provide protection to the user, product and environment.
The working principles of a class 2 biosafety cabinet are as follows: the air is blown as an even, unidirectional flow through HEPA filters to the table top, used as a working area. The unidirectional air flow is often called laminar air flow. The air enters the cabinet through the front window opening. Most of the intake air is being recirculated, and approximately 30 % of it is blown either into the room or into the exhaust channel of the building.

Class 3 biosafety cabinet

Another name for this cabinet is glove box. This cabinet provides protection to the user, product and environment. The difference to a class 2 cabinet is that a class 3 is a closed system with a under pressure. The user is not in direct contact with the product inside. It is handled with gloves that are attached to the cabinet, hence the nickname ‘glove box’.