My avatar is my most-precious Maltese, Gracie. My husband has COPD and there is no way we could have a dog that would cause him any more breathing problems than he already has. The Maltese do not have an undercoat as most dogs have. Her hair is like human hair and will grow to the floor if not cut. They are high maintenance - must be groomed regularly, but we rarely have to visit the vet except for regular checkups and shots. I don't know if all Maltese have her personality, but she is the sweetest, most lovable little cuddle-bug you'd ever want. She is my velcro baby - she is with me 24/7. I love love love my baby and highly, HIGHLY, recommend this breed.