Generally speaking, the biggest requirement for hotel cloth damage is the wall. If the wedding room is decorated with small things and pasted on the wall, it will not only be difficult to clean, but also affect the cleaning. So be sure to ask the hotel staff if they have any special glue before layout. If not, you'd better not post it.
In order to prevent the balloon from leaking, and the hotel charges for using it for one day, there is no need to arrange the balloon in advance and don't fill it too full.
Neither the filter balloon nor the ammonia balloon can be filled too full, and it may explode if you are not careful. This is also for security reasons.