V-Air Solid Air Freshener Refill Cucumber Melon, non aerosol refill cartridge, is uniquely constructed from ceramic, infused with high quality perfumes, then complemented by an integrated internal fragrance core. These combine and diffuse powerful key fragrance notes that are subtly different. The diffusion rate of fragrance moving through the ceramic capsule is much different to the fragrance evaporating from the surface of the fragrance core. Cucumber Melon mixes sweet and subtle. A fresh crush of cucumber leads into a calming melon, which leads into an uplifting peach.