I'm not sure what they mean by " don't count " designer breeds are mixed breeds. Perhaps that's what they mean? Also a mixed breed dog doesn't necessarily guarantee that it is hypoallergenic or even less allergenic. There are 31 purebred dogs which qualify: poodles, bichon frise, Bolognese, Portuguese water dog, Maltese, Chinese crested, Yorkshire terrier, West highland terrier, Welsh terrier, basenji, Afghan hound, Schnauzer, Scottish terrier and more