Patent ID: 11946478
Assignee: DYSON TECHNOLOGY LIMITED
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A fan assembly comprising:
a fan body;
a motor-driven impeller housed within the fan body and arranged to generate an airflow;
a nozzle comprising a base surrounding an upper portion of the fan body and an air outlet arranged to emit the airflow from the fan assembly;
a plurality of sensors connected to the fan body and arranged to measure a value for each of a plurality of air quality characteristics;
a display positioned on the fan body and viewable through the base of the nozzle, the display arranged to present data to a user of the fan assembly;
a user interface positioned on the fan body: and
a processor connected to the fan body and configured to:
receive, from the plurality of sensors, measured values for each of the plurality of air quality characteristics;
for each of the plurality of air quality characteristics, identify one of a corresponding set of intervals within which the measured value falls and select an air quality index value associated with the identified interval;
identify the highest of the selected air quality index values as a current overall air quality index value; and
cause the display to display a time series plot of the current overall air quality index value and a number of preceding overall air quality index values.