HEPA Filters 3um Class II A2 Biosafety Cabinets Laboratory

Laboratory Biosafety Cabinet for Use in High-Risk Experiments Class II A2 Biosafety Cabinets

Class II A2 Biosafety Cabinets Introduction:
Class I biological safety cabinets cannot protect products from pollution because unpurified indoor air continuously enters the work area.
As part of the containment unit. Class I biosafety cabinets are suitable for work involving medium and low risk agents (biosafety levels 1, 2 and 3) who need to be contained but do not require product protection
Unlike traditional fume hoods, HEPA filters in Class I biological safety cabinets protect the environment by filtering the air before exhausting.
With negative pressure, people can be protected by constantly moving air into the work area.

Class II A2 Biosafety Cabinets Precautions:

1.  In order to avoid cross-contamination between items, the items needed during the whole work process should be lined up and placed in the safety cabinet before the work starts, so that no items need to be taken out through the air flow compartment before the work is completed or Put it in, pay special attention: no items can be placed on the front and rear return grilles to prevent the return grills from being blocked and affecting the air circulation.

2.  Before starting work and after finishing work, it is necessary to maintain the air circulation for a period of time to complete the self-cleaning process of the safety cabinet. The cabinet should be cleaned and disinfected after each test.

3.  During the operation, try to reduce the number of arms in and out as much as possible, and the arms should be slow when entering and exiting the safety cabinet to avoid affecting the normal airflow balance.

4.  The movement of items in the cabinet should follow the principle of moving from low pollution to high pollution, and the experiment operation in the cabinet should be carried out in the direction from the clean area to the contaminated area. Before operation, a towel soaked with disinfectant can be used as a bottom to absorb any droplets that may spill.

5.  Try to avoid placing centrifuges, oscillators and other instruments in a safety cabinet to prevent the particulate matter on the filter membrane from shaking off when the instrument shakes, resulting in a decrease in the cleanliness of the cabinet; at the same time, the airflow of the heat dissipation vents of these instruments may affect the cabinet. The airflow balance.

6.  Do not use open flames in the safety cabinet to prevent the high temperature and fine particles generated during the combustion process from being brought into the filter membrane and damage the filter membrane.