Which ventilation requirement is most critical when using carbon monoxide (CO) as a secondary euthanasia method?
-
A
Heating and cooling the room to 68–72°F
-
B
Maintaining CO concentration below OSHA's permissible exposure limit of 50 ppm in the work area
-
C
Using ultraviolet lights to neutralize CO
-
D
Ensuring CO levels exceed 6% in the chamber only