Biosafety ventilation cabinet

The utility model relates to the technical field of biosafety ventilation cabinets, in particular to a biosafety ventilation cabinet, which provides an operation environment for operators through a box body, prevents solution from spilling out of an operation space and improves the protection property of equipment. An operator is protected through the disinfection protection device, so that the protection property of the equipment is improved; an operator is prevented from being exposed in infectious aerosol and splashed objects generated in the operation process through the negative pressure device, so that the safety of the equipment is improved; the culture solution is sterilized through the infrared sterilization device, so that the risk that external pollution enters the culture solution is reduced, and the practicability of the equipment is improved; by means of the detachable support, the equipment has the moving capacity, and the portability of the equipment is improved; comprising a box body, a glass