Diffusers can have any of the available scent oils added to them. Some of these are limited quantity for the design. There are hanging diffusers and Vent Diffusers.
Round
Heart
Stickers for Clear Heart
Heart
Heart
Heart
Heart
Heart
Heart
Square
Frosted
Cylinder
Diamond
Diamond
Only these are available
Flower
Flower
Flower
Vent
Vent
Vent
Vent
Vent