"Are the air" is a phrase that is used to describe something that is present or prevalent in a certain situation or place. Some synonyms for this phrase include "surround," "permeate," "envelop," "fill," "pervade," and "occupy." Each of these words convey the idea that something is very present and noticeable in a particular environment. Additionally, the use of these synonyms can add a sense of emphasis or importance to the thing that is being described as being present, indicating that it has a significant impact or role to play in the situation or context.