Most people want to feel soothed and relaxed at home. For many, essential oil diffusers create a stress-free environment because the pleasant aroma can improve mood, increase calmness and reduce anxiety, to an extent.
However, studies suggest that the chemicals and fragrances from essential oils — which are extracts from plants — emit airborne volatile organic compounds, and can affect indoor air quality. Moreover, studies have shown that essential oils also have an impact on cognitive performance, particularly, reaction time and accuracy.