Other technologies in Dyson fans and heaters
Mixed flow impeller
To draw in the air required to generate a powerful enough jet, Dyson engineers developed a mixed flow impeller. It combines the technologies used in turbochargers and jet engines. It has nine asymmetrically aligned fins with rows of tiny holes that reduce the friction caused by colliding high and low air pressure.
Dyson fans and fan heaters use energy-efficient, brushless DC motors, so you can precisely control airflow.