Features: Ambi Pur 3volution Flowers & Spring will infuse your home with a refreshing floral fragranceEvery 45 minutes, 3 complementary scents alternate - so you can always feel the scent in the room This is a replacement cartridge for the 3volution electric deviceOdourClean technology continuously removes unwanted odors Leaves a pleasant fragrance for up to 90 days when used 12 hours a day at the lowest evaporation level It is a high-quality perfume for a long-lasting sensation of freshness Use Insert the cartridges and then just plug the vaporizer into the outlet. Works up to 90 days when used 12 hours a day at level 1. Try the other AmbiPur brand products, which are in the Air Fresheners, Drug Store and Diffusers categories. The product currently has a 1% discount. If you are not sure about the choice of this product, be inspired by the Spare parts for speakers category.