What is the main purpose of using essential oils in a diffuser?

The primary purpose of using essential oils in a diffuser is to create a pleasant scent while imparting therapeutic benefits through inhalation. When essential oils are dispersed into the air via a diffuser, they allow individuals to inhale the aromatic compounds, which can influence mood, promote relaxation, and provide various health benefits.

Inhalation of essential oils can trigger responses in the limbic system, the part of the brain that deals with emotions and memories, contributing to emotional wellness and potentially reducing stress and anxiety. Additionally, some essential oils possess antimicrobial properties that can support respiratory health and overall well-being when inhaled.

While enhancing skin hydration, purifying the air, and preserving essential oils are important aspects related to essential oils, they do not encompass the primary function of a diffuser. The diffuser's primary role is to disperse the aromatic compounds for inhalation, making option C the most fitting choice.