Nellcor Oximax NPB-40 Operator's Manual page 42

Battery Operation
WARNING: Explosion hazard. Do not use the
NPB-40 in the presence of flammable anesthetics
mixed with air, oxygen, or nitrous oxide.
WARNING: To ensure patient safety, do not place the
NPB-40 in any position that might cause it to fall on
the patient.
WARNING: As with all medical equipment, carefully
route patient cables to reduce the possibility of patient
entanglement or strangulation.
WARNING: To ensure accurate performance and
prevent device failure, do not expose the NPB-40 to
extreme moisture such as rain.
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