What is the primary difference between a Class I and Class II Biological Safety Cabinet?

A Class I BSC protects the user and environment but not the product. A Class II BSC, like this Walker unit, protects the user, environment, and the product by providing filtered laminar airflow over the work surface.

Does this unit require external ducting?

A Class II Type A2 BSC typically recirculates 70% of the air back into the laboratory and exhausts 30% through a HEPA filter. It can be used without external ducting unless volatile toxic chemicals or radionuclides are used, in which case it would require connection to an exhaust system.

What maintenance is typically required for a Class II BSC?

Regular maintenance typically involves annual certification, including HEPA filter integrity testing, airflow velocity measurements, and alarm function checks. UV lamps, if present, also require periodic replacement.

Is a UV light sufficient for sterilisation?

While UV lights can aid in surface decontamination, they are not a substitute for proper chemical disinfection and cleaning. Their effectiveness is limited by shadowing and surface penetration.

What certifications should I look for with a used BSC?

For a used unit, it is crucial to ensure it has been decontaminated and ideally has a recent certification report (e.g., to EN 12469 or NSF/ANSI 49 standards) from a qualified service provider, confirming its performance parameters.

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Walker Class 11 biological Safety Cabinet

Used Walker Class 11 biological Safety Cabinet - Biosafety & Containment Cabinets, photo 1

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Used Walker Class 11 biological Safety Cabinet - Biosafety & Containment Cabinets, photo 7

Used Walker Class 11 biological Safety Cabinet - Biosafety & Containment Cabinets

used Equipment

Available

Verified seller

Walker BSC biological Safety Cabinet - Walker Class 11 biological Safety Cabinet

Name: Walker Class 11 biological Safety Cabinet
Brand: Walker BSC biological Safety Cabinet
SKU: 24045.P1541MEZZ
Availability: InStock

Price: Contact seller for price

This listing is for the Walker Class 11 Biological Safety Cabinet.

The unit is in full working condition and is ready for immediate use.

A Walker Biological Safety Cabinet is a type of biosafety cabinet (BSC) designed and manufactured by Walker, a company that specializes in laboratory containment equipment.

These cabinets are used in laboratories to provide a controlled, contaminant-free environment for handling potentially hazardous biological materials.

What Is a Biological Safety Cabinet?

A Biological Safety Cabinet (BSC) is an enclosed, ventilated laboratory workspace designed to:

Protect the user from exposure to biohazards,
Protect the experiment or product from contamination,
Prevent environmental contamination.

They achieve this through HEPA (High-Efficiency Particulate Air) filtration and controlled airflow systems.

Walker Biological Safety Cabinet – Key Features

HEPA-filtered airflow: Removes airborne particles and microorganisms.
Laminar airflow: Provides a clean work area by maintaining unidirectional air movement.
Front access sash: Allows operator access while maintaining airflow barrier.
UV light for sterilization when not in use.
Ergonomic design: For user comfort during long procedures.

Cambridgeshire, United Kingdom

5,773 km away

Model Number

BSC

Stock Number

24045.P1541MEZZ

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Protecting laboratory personnel from biohazards during microbiological work.
Maintaining sterility of biological samples and cultures.
Handling pathogenic microorganisms, viruses, and cell cultures.
Preparing sterile pharmaceutical products or medical devices.
Performing diagnostic procedures with potentially infectious materials.

Cabinet Type: Class II Biological Safety Cabinet, typically Type A2 for this model, offering personnel, product, and environmental protection.
Airflow Filtration: HEPA filters are standard for both exhaust and downflow, typically rated for 99.995% efficiency at 0.3 microns.
Working Area Dimensions: Commonly available in widths ranging from 0.9m to 1.8m (3ft to 6ft), with a typical working depth of around 0.6m.
Power Supply: Units of this class typically require a standard single-phase electrical supply, commonly 230V, 50Hz in the UK.
Noise Level: For operator comfort, noise levels are typically designed to be below 65 dBA.
Construction Material: The main body is typically constructed from epoxy-coated steel, with a stainless steel work surface for ease of cleaning and decontamination.

A Class I BSC protects the user and environment but not the product. A Class II BSC, like this Walker unit, protects the user, environment, and the product by providing filtered laminar airflow over the work surface.

Biosafety cabinets are valued for their critical role in protecting operators and samples during hazardous work. Buyers typically prioritise certification compliance and airflow integrity when purchasing used units. Industry sentiment emphasises the importance of verifying maintenance history and airflow testing records. Key strengths include durability of construction and long operational lifespans when properly maintained. Common considerations focus on filter condition, energy efficiency, and compatibility with existing laboratory infrastructure. Reliable performance and consistent operator protection remain central to buyer expectations.

General overview for this equipment type

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.