Review on 🚗 Ultimate Car Essential Oil Diffuser: USB Portable Aromatherapy with Car Humidifier & Vaporizer by Paul Lewis

This diffuser looks good and works well. Unfortunately, it has one major downside. The minimum water level is below the nebulizer nozzle. This means that the full amount of water and thus essential oils does not evaporate. About 20% of the water remains in the tank after the device is switched off. That means you're wasting precious essential oil every time you empty and refill your diffuser. This is an unacceptable design flaw.