Lab Furniture Biosafety Cabinet Safety Cabinet

Core Functions

●Personnel Protection:

Negative pressure airflow and a high-efficiency particulate air (HEPA) filter prevent the leakage of infectious aerosols generated during operation, protecting laboratory personnel from pathogens such as viruses and bacteria.

For example, when handling COVID-19 samples, the biosafety cabinet can block virus particles, preventing healthcare workers from inhaling or coming into contact with them.

●Sample Protection:

Outside air is filtered through a HEPA filter before entering the cabinet, preventing sample contamination and ensuring the accuracy of experimental results.

Suitable for aseptic handling of high-value experimental materials (such as cell culture and genetically engineered samples).

●Environmental Protection:

Air inside the cabinet is filtered twice through a HEPA filter before being discharged, preventing harmful microorganisms from leaking into the laboratory environment and reducing the risk of cross-contamination.

Based on protection levels and structural differences, biosafety cabinets are classified into three levels:

●Level I Biosafety Cabinets

Features: Protects only personnel and the environment; unfiltered air enters the operating area directly, offering no protection for samples.

Applicable Scenarios: Low-risk operations (e.g., handling radionuclides, volatile chemicals).

●Level II Biosafety Cabinets

Sub-types: A1, A2, B1, B2, all using HEPA filtration to protect personnel, samples, and the environment.

Features:

A2 type: 70% gas recirculation, 30% exhaust; suitable for general experiments (e.g., environmental testing, food and drug testing).

B2 type: Full exhaust design, directly venting air outdoors; suitable for high-risk operations (e.g., tumor chemotherapy, infectious disease experiments).

Applicable Scenarios: Medical and health, disease prevention, biopharmaceutical, and other fields.

●Level III Biosafety Cabinets

Features: Fully enclosed glove box structure; all interfaces are sealed; both supply and exhaust air are dual-filtered with HEPA filters.

Applicable Scenarios: Laboratories with the highest biosafety level (e.g., handling highly pathogenic pathogens such as Ebola virus).

Detail presentation