Air Wick Essential Mist essential oil diffuser refills - Lavender and chamomile soothing fragrance - Transforms natural essential oils into vapor to envelop us in the fragrances we love most - Vapor is released at regulated intervals for 8 hours, then shuts off until the same time the next day, releasing a subtle fragrance - Customizable fragrance intensity - Each refill lasts up to 45 days - Portable and elegant design - Auto-on function - Long-lasting aroma in your home Measurements: - Width: 20.6 cm - Height: 4.5 cm - Length: 12.1 cm - Weight: 301.99 kg