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Oxygen
Always consider the environment during any rescue situation. The use of an AED in
a combustible environment where fumes or gases are present can be hazardous.
Some people may use oxygen at home or out in the community. Concentrated,
medical oxygen can be dangerous because it is combustible.
If a person is wearing oxygen, turn it off and remove the mask or cannula from the
person’s face before using the AED. If oxygen is being used with rescue breaths,
move the delivery device several feet from the victim before delivering a shock, then
resume rescue breaths with supplemental oxygen.
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