A typical effect of essential oils is the liberation of the respiratory tract. This is especially the case with the essential oils of conifers and some warmth-loving trees such as eucalyptus. But also many plants from the family of labiates, to which peppermint belongs, contain essential oils, which make breathing free.
You can smell right away that a fragrance is suitable for this task. One breathes in and has the feeling as if the lung is stretching and more air fits into it.