Be careful when buying a dog from a kennel. If you suspect fur mites, you should wash the dog or the supervising veterinarian may be able to confirm that the dog comes from a fur-mite free place. Flea collars or pour-on products may have a preventive effect.
Because the fur mites and their eggs do not stick particularly well to the fur, daily grooming in the form of brushing will help remove any mites. If the animal should be washed for other reasons, you might as well use a pesticide shampoo.