Grand Hyatt Seoul is a five-star hotel located in the heart of Seoul. It offers smoke-free rooms for guests who prefer a smoke-free environment. The rooms are spacious and elegantly designed, providing a comfortable and relaxing atmosphere. The hotel also features a variety of dining options, a fitness center, and a spa for guests to enjoy. With its convenient location and smoke-free rooms, Grand Hyatt Seoul is a top choice for travelers looking for a smoke-free hotel in Seoul.