Colder temperature: Dry ice is much colder than ordinary ice, making it a more efficient refrigerant for keeping things frozen, rather than just refrigerated. 

Sublimation: Dry ice turns directly from a solid to a gas without melting into a liquid, which means there is no water or mess left behind. 

No liquid residue: Because it doesn't melt, dry ice is ideal for applications like shipping frozen goods or keeping items like ice cream frozen without them getting wet. 

Lighter weight: As it sublimes, it becomes lighter than ordinary ice, making it easier to transport. 

Efficient cooling: The combination of its extremely low temperature and the sublimation process makes it a very effective coolant for keeping things frozen for long periods.

Entertainment: It's ability to bring a conspicuous, dramatic, visual effects and keeps drinks cold for entertaining, creating fog effects for cocktails, desserts, and centrepieces by placing it in warm water.