Avoid oils high in phenols and eugenols for direct application (topical or internal) such as. You can read more about that here. Diffusion is preferred for cats. i just make sure not to diffuse anything in my kitty’s room (where her food is) and make sure she’s not “locked” in the room with the diffuser – she will go away if it’s one she doesn’t like the oils. No always dilute with a carrier oil, not water. I hope this helps you to feel comfortable diffusing around your cats and using essential oils on them when needed! Do not diffuse oils for hours on end. 5 Safest Essential Oils to Use for Dogs and Cats. help lol. She will not let us check it.I am thinking she has,sprained it. It is better to reapply when needed than overdose. Keep your family and pets safe from toxins in the home by using doTERRA On Guard Cleaner Concentrate. Essential oils are likely more safe for your cat to be around than artificial fragrances such as air fresheners. Click here for more info, Links to email or post on FB did not work. We've got a quick "how to" on the use of pet safe essential oils … We've found it pretty effective. But I will edit it to include some that are more safe to diffuse, Mickey water and oil dont mix Aways use a carrier oil such as fractionated cocont oil