What is the origin of the idiom "clear the air" and when to use it?

The origin of the idiom "clear the air" is rooted in the literal concept of freshening or purifying the atmosphere. In ancient times, people believed that bad air, often associated with disease or unpleasant odors, could lead to illness. Therefore, the idea of clearing or freshening the air became symbolic of restoring a healthy or harmonious environment. It is often employed in personal relationships, workplace environments, or even during group discussions and meetings.