Is it reasonable for the decoration master to open the air conditioner for decoration?

Because the air conditioner belongs to the owner, the decoration master should not use other people's things at will. If you want to use it, you can discuss it with the industry. Generally, the owner will give it to the owner. After all, the weather is very hot. Of course, it is normal if the owner refuses to use it.

It is not recommended to turn on the air conditioner when decorating, because there will be a lot of dust on the spot. As soon as the air conditioner is turned on, all the dust will enter the air conditioning machine. When you really check in, the air blown by the air conditioner will be dirty.