Permitted only in designated clean areas Permitted only in approved and designated clean areas Not permitted at any time; Food or drink may not be brought into or through lab Not permitted at any time;

device Only mechanical device Only mechanical device Only mechanical device HEPA-filtered vacuum lines Recommended Required Required Required *Procedures include but not limited to: centrifuging, grinding

Stanford University follows the categorizing of infectious agents into levels as described in Biosafety in Microbiological and Biomedical Laboratories (BMBL), 6th edition (https://www.cdc.gov/labs/BMBL.html

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