We have a program here at the hotel called unwind. It is a opportunity for our guest to join us in the lobby at 6:00 for a liquid nitrogen demonstration. Westin's official smell is white tea and it is the first thing you notice when you walk into the lobby. To make the air freshner, take a balloon and fill it with blue colored water. We then roll it in the LN until a hallow sphere is formed. We burn a whole in the top and fill it with the white tea. That is followed by some nitrogen. It spurts out white tea air that fills the room. You could do it with any flavor table side.