This Car Aromatherapy has a Fresh Smell & is Very Suitable for Traveling & Keeping in a Good Mood. the Upgraded Cotton Swabs Are Used to Draw & Diffuse the Fragrance More Evenly. the Thickened Cotton Core Improves the Fragrance Diffusion Effect by 90%. the Cotton Core Blocks the Perfume & is Not Easy to Pour Out. It is Rich in Natural Deodorizing & Odor-purifying Factors & Effectively Decomposes the Odor Molecules in the Car. It is Extracted From Natural Plants & has a Mild & Non-irritating Fragrance That Can Help Refresh the Air. It Can Also be Used as an In-car Aromatherapy to Help Remove Odors, Formaldehyde, Etc. the Fragrance is Diffused, & Every Time You Drive It is a Pleasure