This hotel did not have fresh air and has a strong smell. The windows were sealed, the air condition and the fan in the bathroom were very loud. The air condition directly blew on my head. However, turning off the air would be too hot. We stayed for 4 nights, a very hard experience. I requested an early check out but the front desk said because I reserved non refundable, there would be no refund if I check out early. Actually, I should have left the hotel without getting the refund. We would have enjoyed our stay in SF much more. The front desk people were pretty nice and helpful. However, they were not able to change the air in the hotel. I wonder the air quality in Hotel Fusion was not up to the standard. Health department should know the situation.