Bath and Body Works, Black Sparkle Scent Control Wallflowers Fragrance Plug. What it does: wafts your favorite, always-on fragrance into any room, just the way you like it. Why you'll love it: Totally adjustable with 3 intensity levels to fit every room. Provides about more than 1 month of fragrance on low, 1 month on medium (default setting), and less than 1 month on high. Perfect for every (and any) room