Is Using Lemongrass Oil in a Diffuser Safe for Dogs?
No, you should not add lemongrass oil to an essential oil diffuser when your dog is around. The ASPCA states that lemongrass (including the essential oil) is toxic to dogs as well as cats.
Lemongrass oil is popular for aromatic diffusers due to its pleasant citrus smell but it will only cause problems for your dog, especially if he inhales a large amount of it. The lemongrass oil might be diluted when it gets dispersed from the diffuser but this also makes it easier and faster for the dog’s body to absorb the molecules in the oil.