Hi Sian,
We're happy to hear that you love the Aroma-Oil Waterless Diffuser and we look forward to your future business!
Warm regards,
Holly at Lively Living
Hi Yvonne
thanks for the review. If there is any slight oils left in the base once you have remvoed the cannister, simply presss the button at the back and it iwill continue to diffuse oil to get every last drop out . Be sure to watch the video on the website to see how to remove the cansiter and oil bottle etc