According to research, the 4 best dog breeds for people with asthma are Shih Tzu, Poodle, Bichon, and Airedale Terrier. The first three are small dogs, whereas the last breed, Airedale Terrier, is a large dog. Although, these breeds have been shown to invoke the least amount of symptoms in asthmatics, every person is different. No dog breed is completely hypoallergenic. To find out more about these breeds, see the article below.