Aera Diffuser AQ30 with scent samples. Still in great condition. Clean fragrance and essential oil diffuser system for medium to large rooms. Create schedules and control with your phone using the app Adjustable settings 1-10 for medium to large-sized rooms Hypoallergenic scent technology, safe for your family & pets No-fade, long-lasting fragrance Fragrance not included How It Works Aera’s Microdroplet Technology dispenses home fragrance and aromatherapy essential oils as ultra-tiny scent molecules. Unlike a fine mist, it fills a space with clean, hypoallergenic aroma.