We carefully blow compressed air into every crevice of your interior seats—from between cushions to the seams and under the headrests. This clears out dust, crumbs, pet hair, and trapped debris, preparing your seats for a deep, thorough cleaning. If leather seats, they are scrubbed with interior cleaner such as Koch Chemie's Pol Star, removing stains and trapped odors. Fabric seats are thoroughly vacuumed and blown out to give a brand new look. Fabric seats are also shampooed in this step if selected by the customer.