The Berkeley is a luxury hotel in London that offers smoke-free rooms for guests seeking a smoke-free environment. The rooms are elegantly furnished and provide a comfortable stay. The hotel features a rooftop pool, a spa, and a Michelin-starred restaurant. Its prime location in Knightsbridge makes it ideal for shopping and exploring nearby attractions. If you're looking for a smoke-free hotel with top-notch amenities, The Berkeley is a great option.