Aromatherapy oil diffuser

FIG. 1 is a perspective view of an aromatherapy oil diffuser showing my new design;

FIG. 2 is a front plan view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a right side plan view thereof;

FIG. 5 is a left side plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a bottom cover plan view thereof.

The broken lines showing of elements on the aromatherapy oil diffuser illustrate portions of the article and form no part of the claimed design.