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Do not use an open flame to sterilize medical biological safety cabinets, as this can cause serious
Do not use an open flame to sterilize medical biological safety cabinets, as this can cause serious dangersMedical biological safety cabinets can continuously adjust gas flow to maintain sterility. This is achieved by using an AC motor running at a fixed speed. However, at times when the gas flow must be slower, such as when the user must conduct other experiments and close the window sash, the AC motor cannot operate with a smaller current supply. Instead, they convert extra electrical current into heat, which wastes energy and requires additional cooling, which also consumes energy.Precautions for operating medical biological safety cabinets: 1. Wear personal protective clothing and gloves when using biological safety cabinets to prevent contamination. Ordinary lab coats may be worn when performing procedures at biosafety level 1 and 2. Gloves should be placed over the lab coat cuffs. Masks and goggles may also be required for some procedures. 2. In biological safety cabinets, avoid using open flame sterilizers such as alcohol lamps. Using an open flame affects airflow and can be dangerous when handling volatile and flammable items. When sterilizing the inoculation loop, you can use an infrared electric heater, or simply use a disposable plastic inoculation loop. 3. Put your hands and arms into the biological safety cabinet and wait for about 1 minute to allow the safety cabinet to be adjusted and the air inside to "sweep" the surface of your hands and arms before you can start handling the items. 4. When working, try to reduce the movement of your arms and move slowly to prevent interference with the airflow in the cabinet. When moving the arms in and out of the safety cabinet, care needs to be taken to maintain the integrity of the airflow at the front opening. The arms should be moved slowly in and out of the front opening perpendicular to the work area opening. 5. Experimental operations on the work surface should be carried out in the direction from the clean area to the contaminated area, and all operations should be performed in the middle and rear of the work surface. 6. When working, autoclave-resistant biohazardous waste bags and straw-holding trays are placed in the safety cabinet and cannot be taken out of the safety cabinet. Otherwise, when using these items, both arms must frequently enter and exit the safety cabinet, which will interfere with safety. The integrity of the cabinet air barrier affects the protection of people and items. 7. Once spills occur during the experiment, use disinfectant paper towels to absorb and clean them on the surface. 8. Try to keep the safety cabinet in continuous working condition, and conduct surface disinfection of all items to provide personnel protection. When taking items that may cause contamination from inside the safety cabinet, the surface must be disinfected. |
