These work so simply, with thin reeds placed in a small vase filled with essential oils ... 3-wick candle is typically 25 - 45 hours. So you're kinda making out like a bandit with a diffuser ...

The Ellia Adore is a plug-in aroma diffuser that delivers a fine mist of scent, as well as soothing sounds and light effects, to lull you into a state of zen. It's designed for use in the home ...