There are only a handful of truly hairless dog breeds, these include the American hairless terrier, the Chinese crested (hairless,) the hairless Khala, the Peruvian Inca Orchid and the Xoloitzcuintle. (caninejournal.com)
The Chinese Crested is hardly the only breed of hairless dog with a weird bit of fur on top of its head. (dogs.lovetoknow.com)
Dogs with long hair such as cocker spaniels or those with closely - cropped fur such as Labrador retrievers are equally likely to make someone sneeze, and even hairless dogs like the Chinese crested or sphinx cats can produce allergens. (helix.northwestern.edu)