Add fresh scent and remove odor to filtered air by using the Spring and Renewal Febreze Air Purifier Scent Refill Cartridge with your Febreze® Air Purifier. This product is designed to provide good smelling air for up to 30 days. The scent refills are easy to install as well as remove once they re empty. They re available in different scents that will have you breathing cleaner air. These cartridges are compatible with Febreze® Air Purifier models: FHT170W FHT180W FHT180V FHT190W and FHT190V. Each Air Purifier takes 1 Scent Cartridge.