Why do different brands of hotels taste different?

Reason: 1. Rooms with poor ventilation or small room spacing. After the previous guest checked out, for example, before checking out, he used a shower, which would leave the smell of shower gel or shampoo because of insufficient ventilation.

2, carbon dioxide, smoke, sweat. In addition to the smell of room decoration and the inevitable smell of life, the smell caused by human life factors can not be ignored. The carbon dioxide exhaled by the human body itself is also one of the sources of odor, especially when you are active in a closed environment for more than 8 hours, especially when your roommate smokes.

3, the wall or ceiling water leakage, water seepage. There are not many words in this regard, but there will be. Year after year, it will cause mildew and odor. If there is water seepage, some hotels will use wooden floors, and the floor mats below are also prone to water vapor accumulation and odor.