Biosafety Cabinet Manufacturers in India

Choosing the Right Biosafety Cabinet for Your Lab: Understanding the Different Classes

When working in controlled environments where contamination and safety risks are high, selecting the appropriate biosafety cabinet (BSC) is crucial. BSCs are classified into three main classes based on the level of protection they provide to personnel, product, and the environment.

🔹 Class I Biosafety Cabinets

Class I cabinets offer basic protection for personnel and the environment by filtering air before it’s released outside. However, they do not protect the product being handled, as unfiltered room air flows directly over the work surface.

🔹 Class II Biosafety Cabinets – The Most Widely Used Category

Class II BSCs provide comprehensive protection, safeguarding the user, the environment, and the product. These are the most commonly used cabinets across pharmaceutical, microbiological, and biotechnology labs.

At Dyna Filters, we specialize in Class II Biosafety Cabinets, which are further divided into five types based on airflow patterns and intended use:

✅ Type A1 – (Less Common Today)

• Recirculates air within the cabinet
• Offers limited exhaust handling
• Rarely used due to outdated safety standards

✅ Type A2 – Most Popular and Versatile

• Recirculates 70% of air through HEPA filters
• 30% of air is exhausted, either filtered back into the room or externally vented
• Suitable for work with trace amounts of volatile chemicals (if ducted)

✅ Type B1 – For Low-Toxic Chemical Use

• Recirculates 30% of air and exhausts 70% outside
• Ideal for work with small quantities of toxic chemicals and radionuclides
• Offers a dedicated exhaust zone on the work surface

✅ Type B2 – For High-Risk Chemical and Biological Applications

• Provides 100% exhaust to the outside environment
• No air is recirculated inside the cabinet
• Best for handling hazardous chemicals, vapours, or pathogens

✅ Type C1 – Hybrid Flexibility

• Combines features of A2 and B2
• Allows recirculation or direct exhaust, depending on the application
• Suitable for labs needing operational flexibility

🔹 Class III Biosafety Cabinets

Designed for maximum containment, Class III cabinets are gas-tight enclosures used in high-security labs (e.g., BSL-4). These provide the highest protection level for personnel, product, and environment, often used for dangerous or unknown pathogens.

How to Choose the Right BSC for Your Laboratory?

When selecting a biosafety cabinet, consider the following:

• Type of work and biological agents involved
• Use of volatile chemicals or radionuclides
• Need for product vs. personnel protection
• Required compliance with biosafety levels (BSL)

At Dyna Filters, our cleanroom experts can help you choose and configure the ideal Class II BSC for your application. Whether you need Type A2 for standard microbiology or Type B2 for chemical-heavy processes, we offer precision-engineered solutions backed by robust safety standards and service support.

Class II BSCs protect the operator, product, and environment with HEPA filtration, while Class III BSCs provide maximum containment using a gas-tight system with glove ports.

BSCs are essential for healthcare, pharma, biotech, research labs, and hospitalshandling hazardous biological materials.

EN12469 certification ensures compliance with international biosafety and contamination control standards, guaranteeing safety and efficiency.

Before buying a biosafety cabinet, consider:

• Cabinet Class and Type (A2, B1, B2, C1)
• Application type (biologicals only or involving chemicals)
• HEPA filtration & exhaust needs
• Workspace size and dimensions
• Certifications (NSF/EN/ISO)

Dyna Filters provides expert consultation to help you select the right cabinet based on your BSL level and workflow.

Type A2 recirculates 70% of filtered air inside and exhausts 30%; suitable for biological work with trace chemical use (if ducted).

Type B2 exhausts 100% of air externally, with no recirculation; ideal for handling hazardous chemicals and cytotoxic drugs.

Choose based on whether your work involves toxic vapors or just microbial safety.

Type A2 cabinets can be used ducted or ductless, depending on chemical use.

Type B2 cabinets must be ducted externally.

Dyna provides both options with custom exhaust integration.

Biosafety cabinets should be certified annually or after every relocation or major filter replacement. Dyna offers HEPA integrity testing, airflow calibration, and NSF-compliant validation reports for audit readiness.

Typically, HEPA filters last 3–5 years, depending on usage intensity, particulate load, and environment. Dyna cabinets come with filter clog indicators and support safe-change filter systems to simplify maintenance.

Yes. Dyna offers customizable cabinet widths (3ft to 6ft), glove ports, UV lamps, electrical sockets, and external exhaust compatibility. We design based on application, airflow layout, and space constraints.

Look for:

• EN 12469 (European standard)
• NSF/ANSI 49 (US standard)
• ISO 14644-1 (Cleanroom compatibility)

Dyna’s Class II cabinets are engineered and validated to meet these international biosafety and airflow performance standards.

No. A biosafety cabinet is for biological protection, while a fume hood is for chemical vapors. Only a Class II Type B2 cabinet with proper ducting can offer partial chemical handling capabilities, but it is not a substitute for a fume hood in chemistry labs.