Devices that provide the environment needed when biological pollutants are released and / or sensitive work away from the effects of biological pollutants are called biological safety cabinets or biosafety cabinets. Contaminating particles often cause respiratory damage. Biological agents, which can hang in the air with the inhaled air, can spread to the whole body by entering the lungs and from there into the bloodstream. In order to identify and prevent hazards that may occur before or after working in the laboratory, or to minimize the likelihood of occurrence, safe working conditions for human health should be provided based on scientific methods. Sterile Cabinet is a device that enables all kinds of work done with biological agents (sowing, analysis, experiment etc.) in laboratory environments safely. BRAU GROUP designs and manufactures biosafety cabinets in various models for a better laboratory working environment.
Biosafety cabinets are basically produced in 4 standards.
Circulation fan motors, air inlets, outlets, lighting, filters etc. are located in the upper part. In the working area, there is a glass cover, gas fittings and worktop that vary depending on the model. In the control panels section, depending on the model, generally, electrical sockets, blower, sterilizer and lighting control switches etc. digital indicators are available.
The biological safety cabinet should be placed indoors where the traffic is the least, away from air conditioning systems, doors and windows. The biosafety cabinet should be made of water, moisture and chemical resistant material. The air extraction system in the biosafety cabinet must be capable of providing continuous airflow and can operate 24 hours a day. Electrical installations and equipment and mechanical installations and equipment must be isolated from each other. Electrical outlets and switches must be protected. Burners and heaters that can generate excessive heat can damage Hepa filters, so their use in the biosafety cabinet should be taken into consideration and bunsen burners should not be opened too close to the filters. Preventing materials should not be in front of the suction grilles. Air suction and outlet grilles should be always open. Security measures should be taken before working in the biosafety cabinet.
The cause of human errors is often lack of information and carelessness. Despite all the precautions taken, an accident that may occur in the laboratory environment should be taken into consideration and a first aid team should be available in the institution.
Microbiology, biochemistry, cytotoxic drug preparation etc. Biological safet cabinets should be used when working in areas or when working with carcinogenic substances. Biosafety cabinets must be absolutely connected to a ground-protected electrical installation. The ventilation fan should be activated before the safety cabinet front sash is opened. According to the model, work should be started after the sterilization of the air circulation inside is completed for a certain period of time. This time varies by model, but it should be at least five minutes. When the microbiological safety cabinets are not used, the front sash must be closed. During operation, front sash should be lowered to the lowest possible level. In this way, the connection of the indoor environment with the outside will be minimized. In some studies, users may need to wear extra masks and protective lab glasses.
