Oxygen-free may refer to the absence of oxygen in an environment or in a material.
Not to be confused with free oxygen, oxygen in the atmosphere of Earth that is not combined with other elements and may be breathed by living beings.
Oxygen-free may refer to the absence of oxygen in an environment or in a material.
Not to be confused with free oxygen, oxygen in the atmosphere of Earth that is not combined with other elements and may be breathed by living beings.