I booked a non-smoking room because my wife, son, and I have asthma. eh, as soon as I got out of the elevator, along the corridor until I reached the room, cigarette smoke was billowing from all over the place, I don't know which room it was from, even though there was a non-smoking room sign in front of the room. Maybe it's not entirely the hotel's fault but the guest's awareness. However, the hotel needs to be more assertive. Imagine, I brought a 2-year-old child through the corridor, cigarette smoke entered the room, and the cigarette smoke also entered the room. I've reported it several times, but there was no solution, they just said they would check it later, but there was still no change. Hopefully, they will pay more attention in the future.