Having already owned a Pure Hot+Cool Link fan, the new Purifier Hot+Cool is the next level of Dyson fans. The fan is larger & cool air really travels throughout the room, making 80+ degree days comfortable. I'm able to see both fans in the Dyson Link app. For the Purifier Hot+Cool, the Dyson Link app has explanations & charts for all of the pollutants being monitored. Well done, Dyson!