Based on this product's specifications, here are some alternatives and similar models
Ultrasonic aroma diffuser Concept Solution DF2010 — tank input, 0.3 L, up to 50 m², 15 W, AC 220–240 V
Summary description:
Concept Solution DF2010 is an ultrasonic aroma diffuser with a 0.3 L tank input designed for rooms up to 50 m². It features button control, wood-coloured housing, 15 W AC power (220–240 V) and compact dimensions (132×103×146 mm). Use it to disperse essential oils or fragrance blends for home or office humidifying and scenting.