Alycon's Diffuser Cleaner is suitable for all ultrasonic diffusers. Extend the life of your diffuser unit with this simple cleaner. It will remove the residue of any essential oils and revive your diffuser so that it's like new again. This diffuser cleaner is non-toxic, odour free and 100% environmentally friendly. It is also skin friendly and suitable for those with sensitive skin. Can be used up to 10 times to clean and rejuvinate your diffuser.