What is the term for air that is consumed around a burning fire?

The term for air that is consumed around a burning fire is primary air. This air is essential for the combustion process and is drawn into the fire or flame to support burning. Primary air typically includes the air that mixes directly with the fuel at the point of combustion. It helps to maintain the fire's efficiency and heat output.

While secondary air refers to the additional air supplied to the combustion process for more complete combustion or to enhance efficiency, it is not the air that is directly consumed around the fire itself. Therefore, primary air is the most accurate term to describe the air that is used around a burning fire, as it is directly involved in the combustion process at that moment.