The island of Maui is the paradise of paradise, and its air quality is no different. The more than 25,000 people who live in the Kahului-Wailuku area are blessed with warm temperatures and cloudless skies most of the year, in addition to the clean air. That's due in part to the fact that Maui's volcanoes — unlike those on the big island of Hawaii nearby — are dormant, so there's no risk of volcanic fog, or "vog."