The passenger compartment accumulates moisture, organic matter, and textile particles that degrade materials. Regular ventilation reduces trapped odors. Dashboards and plastic panels should be treated with UV-protective conditioners to prevent them from becoming brittle or losing their pigmentation. Textile upholstery requires deep vacuuming to remove dust mites and accumulated dust. In vehicles with leather or eco-leather seats, moderate conditioning prevents cracking associated with dryness. The goal of scheduled interior cleaning is to preserve the vehicle's ergonomics, comfort, and perceived value—all important factors if the decision is ever made to sell it.
