The natural soil repellent properties of the wool fiber do not require a lot of special cleaning. You should have your carpet professionally cleaned once every 1 to 2 years or as needed.
Classic Floor Designs highly recommend finding a cleaner who is experienced cleaning wool carpets as some solvents used to clean Nylon carpets might not be suitable for wool. Finding a reputable wool carpet specialist by checking references is worth the time, but is worth it to help keep your carpet clean and healthy.
For example, your professional cleaner should not apply any stain repellant treatments that contain silicone because they tend to accelerate carpet soling. As always have the cleaner test the cleaning agent on a small inconspicuous area before proceeding to the entire room. Always vent your rooms out thoroughly both during and after a professional cleaning to freshen your air and to help the carpet dry thoroughly which helps prevent mold.