INTRODUCTION TO CLASS II TYPE A2 BIOLOGICAL SAFETY CABINET
- The Class II Type A2 Biological Safety Cabinet is a sealed, internally recirculating enclosure designed for handling pathogenic or potentially pathogenic microorganisms. It provides comprehensive protection for laboratory personnel, work samples, and the surrounding environment against biological contaminants.
- Purpose of Use: To protect the operator by purifying the surrounding environment through an ULPA filter, effectively removing harmful bacteria and viruses. Applications include medical diagnostics, clinical medicine, molecular biology, and cell culture.
- Operating Principle of Class II Biological Safety Cabinet: Ambient air enters the cabinet through the front opening and is directed beneath the work surface. It is then blown downward across the work area through the internal ULPA filter. Approximately 70% of this airflow is recirculated within the working chamber, while the remaining 30% is exhausted to the external environment through the ULPA filter located at the top of the cabinet.

KEY FEATURES
- The Class II Biological Safety Cabinet is offered in widths of 1000 mm and 1200 mm to accommodate different laboratory requirements.
- Dual Filtration System: Equipped with two ULPA U15 filters manufactured in compliance with EN1822 standards, providing 99.9995% efficiency for particles of 0.12 µm.
- The energy-efficient, low-noise blower ensures a filtration face velocity of 0.25–0.5 m/s.
- Average inflow velocity: ≥0.4 m/s.
- Construction: The exterior housing and stand are fabricated from powder-coated steel, while the internal work zone is constructed from 1.5 mm thick grade 304 stainless steel, offering high chemical corrosion resistance and ease of decontamination.
- Control Panel: Front-mounted HMI touch screen for controlling LED lighting, UV lamp, blower, and monitoring airflow velocity as well as cabinet operating status.
- The cabinet includes two waterproof electrical outlets within the work zone for added convenience.
- Noise Level: Low operational noise ≤ 65 dB.
- The 5 mm thick tempered glass door provides full UV protection and is tilted at a 10-degree angle for ergonomic ease of operation. Additionally, the door is equipped with a door sensor that triggers height-warning alerts to ensure safe working conditions when opened.
- Work surface: Removable panel design with handles, allowing easy disassembly and cleaning.
SPECIFICATIONS
Model | ISA2-1000 | ISA2-1200 |
| Outer dimension (DxRxC) | 1000 x 915 x 1290 mm | 1200 x 1023 x 1369 mm |
| Inner dimension (DxRxC) | 932 x 726 x 590 mm | 1133x 829 x 590 mm |
| Material | Outer structure made of powder-coated steel; inner chamber constructed from 1.5 mm thick SUS 304 stainless steel | Outer structure made of powder-coated steel; inner chamber constructed from 1.5 mm thick SUS 304 stainless steel |
| Electricity supply | 220V/50Hz | 220V/50Hz |
| Air flow | 70% recirculated air, 30% exhaust air. | 70% recirculated air, 30% exhaust air. |
| Tốc độ khí vào trung bình | 0.4m/s | 0.4m/s |
| Downflow of air speed | 0.25-0.5m/s | 0.25-0.5m/s |
| Light intensity | >750 Lux | >750 Lux |
| UV intensity | ≥40µw/cm² | ≥40µw/cm² |
| ULPA U15 filtration efficiency | 99.9995% for particles sized 0.12 µm | 99.9995% for particles sized 0.12 µm |
| Maximum door opening | 400 mm | 400 mm |
Read more: Class II Biological Cabinets Manual
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