The Biosafety Cabinet are designed to protect workers, laboratory environments and experimental materials from the exposure of infectious aerosols and spills that may be caused by the operation of bacterial strains and diagnostic specimens, as well as the safety of laboratory products. For some biological and fungal culture experiments often produce some pollutants, these pollutants can not be discharged casually, the emergence of bio-safety cabinets well solved the problem of humic acid. The proper use of Biosafety Cabinet can protect the experimenter while also solving the problem of biological pollution emission. Of course, all this is established in the gas bottle cabinet correct purchase and use of the premise, there are many security cabinets, biological security cabinets and ultra clean Taiwan.
The type of selection of Biosafety Cabinet depends on the type of biological test:
1, if only microbial samples in the test, then the basic types of biosafety can be used;
2. If the biological test involves microbiological samples and micro-chemical reagents (non-corrosive), it is necessary to use the safety cabinets of the outer piping of equipment. Because the HEPA filter does not effectively filter out chemical gases, if not discharged, the staff and the environment in the laboratory will be threatened;
3. If a biological test involves a cytotoxic drug, such as a variety of cancer treatment drugs, a cellular toxin ventilation safety cabinet must be used.
The fume hood (also known as fume) mainly cleans up corrosive chemical gases and poisonous fumes during chemical experiments. Because no HEPA filter is equipped, the fume hood can not effectively remove microbial media. Therefore, the ventilation cabinet can not be used when microbiological test. Because it can cause biological pollution.
Ultra-clean Working table (Ultra net stage) is designed to protect the test product or products, its working principle is: through the air suction pre-filter, through the static pressure box into the HEPA filter filter, the filtered air to the vertical or horizontal flow of the state to send, so that the operation area to achieve $number cleanliness, to ensure the production of environmental cleanliness requirements. Ultra-clean worktable according to the direction of airflow is divided into vertical flow super net worktable and horizontal flow Super Net workbench, according to Operation structure is divided into unilateral operation and bilateral operation two forms, according to its use can be divided into ordinary super Net Workbench and Biological (medicine) Ultra Net Workbench. Once the microbial samples are placed in the working area, the Laminar air will be hazardous to the front-desk staff with the air blowing in the microbial medium.
The fume hood and the Ultra Clean Workbench are not part of the Biosafety Cabinet, since the two types of safety cabinets are not used in experiments involving microorganisms.
The gas bottle cabinet is used to improve the local exhaust ventilation, protect the cylinder, cylinders from the outside of the cupboard fire and protect the surrounding objects from internal fire metal containers. There is a purge system, an alarm and a vent hole in the air cylinder cabinet, usually a bottle, two bottles and three bottles.