Add water and a few drops of your favourite scented oil, and the room slowly takes on a smell you chose rather than whatever was for dinner. The 300 ml tank runs for up to eight hours on the low mist setting and switches itself off when the water runs out. A soft light ring glows in seven colours, or stays off if you prefer the dark. With its wood-effect base and matt white top it looks at home on a shelf, a bedside table or a desk. It is very quiet. Oils are not included.