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Does the door to a storage room containing liquid nitrogen dewars and freezers that contain Biosafety Level 2 (BL2) material need to be labeled BL2 if no biological material is used in the room?

April 26, 2017Biosafety contain containing dewars door freezers liquid nitrogen room storage

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Does the door to a storage room containing liquid nitrogen dewars and freezers that contain Biosafety Level 2 (BL2) material need to be labeled BL2 if no biological material is used in the room?

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The dewar or freezer should be labeled with a BL2 sticker, and the door should have a biohazard symbol to indicate that biohazards are in the room. If BL2 work is conducted in the room, then the whole room should be labeled BL2.