ABSTRACT
At present, with the constant expansion in the scales of college chemical labs, colleges have gradually increased requirement over experimental teaching staff as well. The number of comprehensive and innovative experiments has also increased dramatically, and more and more teachers, doctors, post-doctors, and masters are accessible to labs for research, so that the times of exposing to toxic and harmful substances and the personnel of that can be increased. To strengthen the security of chemical laboratory environment, improve the experimenters’ personal protection, and to take preventive measures, have now become a problem in urgent need of addressing.
