A MODERN FRAGRANCE EXPERIENCE: Redefine how you experience fragrance. Air Wick Essential Mist is the modern way to transform fragrance infused with natural essential oils into a mistVALUE: Each refill provides up to 45 days fragrance based on low setting, no need to add water, each refill comes ready to use, easy to change out the refillsADJUSTABLE TO YOUR LIKING: Gadget begins with a 2X initial fragrance boost that fills the room. Then, the device will run for an 8-hour cycle, releasing mist regularly and will then go into standby mode for 16 hours. Discover the more natural & premium fragrance experience of essential oils diffused by mist with New Air Wick Essential Mist diffuser. It transforms natural essential oils into a gentle, fragrant mist that surrounds your home with the fragrances you love.