In 1984 Choice Hotels of steel the first otel'nym the brand which has offered the network program on creation of numbers for non-smoking. Today at least 50 percent of rooms in networks Comfort, Quality, Sleep Inn and Roadway Inn are intended for non-smoking. Alongside with separate numbers for fans of a healthy way of life the whole similar levels began to appear. So, floors for non-smoking are allocated in the Moscow hotels " Balchug Kempinski " and "Iris". And company U.S. Franchise System in general has started in work the whole concept Evergreen Rooms - ten rooms in each hotel of network Best Inns are equipped by cleaners of air, system of clearing of potable water and water for a shower.