Each Wallflowers plug includes a built-in safety mechanism that automatically shuts off & disables the plug if it overheats.
3 Tips to Safely Enjoy Our Wallflowers! To get started, twist right (clockwise) to uncap the refill and twist left (counter-clockwise) to attach it to the plug. Always keep your plug and fragrance refill upright. Because Wallflowers refills contain fragrance oils that may damage finished surfaces and some plastics, always keep a 12″ clearance above your plug to prevent damage to surrounding surfaces.