The Shanghai Xinzhuang Biological Safety Cabinet is designed to protect the operator, the laboratory environment, and the experimental materials from exposure to infectious agents such as primary cultures, strains, and diagnostic specimens. It provides essential protection against aerosols and potential spills that may occur during laboratory procedures.
To ensure optimal performance, it's important to follow specific technical guidelines:
1. **Operation and Maintenance**: Most biosafety cabinets are intended for 24/7 operation. Continuous use helps maintain low particle levels in the lab. Class A1 and A2 cabinets can be turned off when not in use, but Class B1 and B2 models must remain operational due to their connection to a dedicated exhaust system. Before and after each session, allow the cabinet to run for at least 5 minutes to complete the "purification" cycle, ensuring contaminated air is fully expelled.
2. **Airflow Velocity**: The air entering through the front opening should be around 0.45 m/s. This airflow is sensitive to disturbances like people moving near the cabinet, open windows, or door movements. To minimize interference, place the cabinet away from high-traffic areas. Leave at least 30 cm of space on both sides and behind the unit for maintenance, and 30–35 cm above the cabinet for filter access and measurement.
3. **Operator Technique**: Improper use can compromise safety. When moving arms in and out, do so slowly and vertically to maintain airflow integrity. Allow your hands to enter the cabinet for about a minute before starting work, so the air can "sweep" over your skin. Always prepare all necessary items inside the cabinet beforehand to reduce the number of arm movements.
4. **Item Placement**: Do not block the front air intake with papers, instruments, or other objects. Disinfect items with 70% alcohol before placing them inside. Use absorbent towels soaked in disinfectant to manage spills. Place items near the back of the work surface to avoid blocking airflow. Equipment that produces aerosols, like mixers or centrifuges, should be positioned toward the rear. Large waste containers should be placed on one side of the cabinet.
5. **UV Lamps**: UV lamps are not typically required in biological safety cabinets. If used, they should be cleaned weekly to maintain effectiveness. During recertification, check the UV light intensity. Never operate the lamp while someone is in the room to prevent eye and skin damage.
6. **Open Flames**: Avoid open flames inside the cabinet, as they can disrupt airflow and pose a risk with flammable materials. Instead, use a micro-burner or electric heater for sterilization.
7. **Spill Management**: Laboratories must have clear spill response procedures. Any biohazardous spill should be cleaned immediately once the cabinet is running. Use appropriate disinfectants and minimize aerosol generation. All materials that touched the spill must be decontaminated or autoclaved.
8. **Cabinet Evaluation**: Regular assessments should include checking the cabinet’s structural integrity and airflow performance.
Shanghai Xinzhuang specializes in manufacturing high-quality biological safety cabinets and other laboratory equipment. With advanced technology and strict quality control, we offer reliable solutions tailored to meet your needs. Contact us today for more information or to place an order.
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