Kỹ Thuật
A Biosafety Cabinet Class II (BSC Class II) is a specialized laboratory equipment designed to provide protection for:
The operator
The biological samples
The working environment
The cabinet uses HEPA filtration to remove airborne contaminants, effectively preventing cross-contamination and the spread of biohazards into the surrounding environment.
BSC Class II operates based on air recirculation combined with HEPA filtration. The process is as follows:
Ambient air is drawn into the front grille of the cabinet, forming an air barrier to protect the operator.
A portion of the air is directed vertically downward across the work surface to ensure sterile conditions for the samples.
The air is then pulled back upward, passed through a HEPA filter, and exhausted either partially or completely, depending on the cabinet type.
BSC Class II is categorized into five types based on airflow design and exhaust mechanism: Type A1, A2, B1, B2, and C1.
| Type | Air Recirculation / Exhaust Ratio | Exhaust System | Application |
|---|---|---|---|
| A1 | 70% recirculated / 30% exhausted | Exhaust into room via HEPA filter | Non-hazardous biological samples |
| A2 | 70% recirculated / 30% exhausted | Exhaust into room or ducted out | Low-risk samples without toxic chemicals |
| B1 | 30% recirculated / 70% exhausted | Exhausted through ducted system | Use with light chemicals or infectious agents |
| B2 | 0% recirculated / 100% exhausted | Fully ducted to the outside | High-risk samples or toxic chemicals |
| C1 | Flexible (operates as A2 or B2) | Modular exhaust with special filters | Versatile applications in dynamic environments |
Provides comprehensive protection for user, sample, and environment
High-efficiency HEPA filters remove ≥99.97% of particles ≥0.3 microns
Airtight design with easy maintenance and cleaning
Quiet, energy-efficient operation
Available in multiple configurations to suit various applications
BSC Class II cabinets are widely used in:
Microbiology, biomedical, and pharmaceutical laboratories
Biotechnology and vaccine development centers
Hospitals, diagnostic and testing laboratories
Biological manufacturing and cell culture labs
Cleanroom environments in high-tech industries
BACH LONG TRADING - SERVICE - MANUFACTURING CO., LTD
Address: 75 Nguyen Hong Street, Ward 1, Go Vap District, Ho Chi Minh City, Vietnam
Hotline: +84 931 435 454
Email: sales@congnghelockhi.vn
Website: www.congnghelockhi.vn
