The type you rarely see nowadays. Upon calling, he showed up in less than 2 hours, worked quickly, did not make a mess. Also, he explained every step of what he was doing and why this helped give me confidence that he was doing the job right. As to the Futon that our dog graced with urine, there is no sign or smell at all. It is as if there never was a stain. His pricing was better than 2 of the other 3 companies we called.