This warmer has anti-fading technology that tackles olfactory fatigue by automatically releasing subtle pulses of fragrance into the air so nature-inspired fragrances stay noticeable for up to 60 days. • Enjoy this warmer with anti-fading technology that tackles olfactory fatigue by automatically releasing subtle pulses of fragrance into the air. • Compatible with all Air Wick® scented oil refills. • Oil warmer is outlet-powered. • Five fragrance settings allow you to adjust the intensity and frequency of the scented oil release. • Low-refill indicator will turn the refill red when it's close to being empty. Discover the Air Wick® Advanced warmer with anti-fading technology that tackles olfactory fatigue by automatically releasing subtle pulses of fragrance into the air so nature-inspired fragrances stay noticeable for up to 60 days. Material(s): Plastic; Color(s): White.