It is virtually odorless and leaves only a fresh smell—like after a summer rain. Like all the Ona Odor products, Ona Pro is plant-based and safe to use around people, plants and pets. The Ona Mist aerosol is designed to only spray a short burst into the air. It is so powerful; that's all you need! The virtual scentless properties makes it practical to use Ona Pro Mist anywhere—and people won't realize that you are controlling odors.