From the Ellia Collection. The Ellia collection includes premium diffusers and the highest quality essential oils available, helps you take ambiance of your living and working spaces to new levels. Relish the beauty of water lilies with a Calm Waters Porcelain Aroma Diffuser from the Ellia Elements Collection. Perfect for your desk, bathroom, or favourite small space — just add your favourite essential oils and enjoy the subtle aroma. The process is simple: A wick soaks up your Ellia essential oil and releases the scent through the porcelain petals, without water or electricity. Consciously crafted from ceramic and porcelain, and delightfully sized to fit in the palm of your hand. The diffuser can be cleaned with a 50/50 mix of water and vinegar. Use the solution to rinse out the reservoir and plastic lid, and use a soft-bristled brush on the ultrasonic membrane to avoid damaging it.