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Containment Level 1

Procedure for Containment Level 1 (CL1)

  • The room should be easy to clean.  Bench surfaces should be impervious to water and resistant to chemicals.  There must be a sink for handwashing.
  • If the room is mechanically ventilated, the airflow should be inward, at least while the work is in progress.
  • The door should be closed while work is in progress.
  • Wear laboratory coats, preferably side or back fastening, in the room and remove when leaving biological laboratory areas.
  • No eating, chewing, drinking, smoking, storing food, applying of cosmetics, taking of medicines or mouth pipetting.
  • Decontaminate and wash hands when contamination is suspected and before leaving the room.
  • Effective disinfectants must always be available (see Appendix 2).
  • Minimise aerosol production.
  • Clean and disinfect bench tops as necessary after use.
  • Store used equipment awaiting disinfection/sterilisation safely.  Pipettes in disinfectant must be completely immersed.
  • Place all solid waste material in dedicated clinical waste bins for removal by approved contractors (currently Novus Environmental of Royston).  Contaminated material for disposal should be transported in robust containers without spillage.
  • By agreement with the Biological Safety Officer, CL1 waste may be autoclaved or heated to 180°C for a minimum of 15 minutes before disposal through the general waste.
  • Disinfect all liquid waste before disposal.

Safety Office Contact Details





Inglis Building

Main Site

Trumpington Street

Cambridge CB2 1PZ


Gary Steele

Department Safety Officer

Tel: 01223 (3)32740


Steve Wickens

Department Safety Coordinator

Tel: 01223 (7)61455


Matt Greenhalgh

Department Fire Officer

Tel: 01223 (3)32765