There were some other brands that tried it but the airflow is much weaker and has ozone problems. Maybe Ionic Breeze? It was a Sharper Image type product.
The Dysons do have regular bladed impellers in the base, but by expelling the air in a ring shape take advantage of viscosity to pull air around the ring for an added flow.
My main reason for preferring the Dyson type fan is the noise they make is a soothing white noise, instead of the helicopter-like beating noise the box fans make.
There are other brands that make quality quiet fans.
My Vornado runs 24x7 and on minimal setting is inaudible, on second setting is very quiet. And it costs way less than a Dyson!
I have two units in the house, and when I ordered second unit I got a defective one - probably fan was not balanced. It was making noise like normal fan. I exchanged it on Amazon, and boom - second quiet fan in the house.
The Dysons do have regular bladed impellers in the base, but by expelling the air in a ring shape take advantage of viscosity to pull air around the ring for an added flow.
My main reason for preferring the Dyson type fan is the noise they make is a soothing white noise, instead of the helicopter-like beating noise the box fans make.