30 days of fragrance (Room size of 800 cubicfeet). Fragrance sold separately. Fragrances large spaces (Room size of 800 cubic feet). 30 days of Yankee Candle signature fragrance (On low setting) (sold separately). Lights up (sensor will turn on light when the room is dark). Easily adjust the fragrance intensity). Conforms to UL STD 283,1786; Certified CSA STD C22.2, No. 64,256.