Looks like a windmill if it was made by Dyson, but with low tech. This other no moving parts[0] one really looks like a Dyson product. [0] https://www.youtube.

Looks like a windmill if it was made by Dyson, but with low tech. This other no moving parts[0] one really looks like a Dyson product. [0] https://www.youtube.com/watch?v=nNp21zTeCDc https://www.youtube.com/watch?v=nNp21zTeCDc