Objective:The anther aims to ensure the safety of the lab staff by analyzing the quality of the biosafety cabinetry.Methods:The anther probes into the operation of the biosafety cabinetry by identifying,checking and assessing the defects of the biosafety cabinetry.Results:The biosafety cabinetry have the defect of noise.Conclusions:The conclusion is that there live some defects in the biosafety cabinetry.The lab should build up an affection administration system to offer necessary protection facilities and protection methods to ensure the safety of lab staff.