The company says it uses ‘Coanda effect’ to produce large amount of air flow with small input of compress air. How come I find exact copy of vortex principle of Viktor Schauberger here?
Sir James Dyson’s bladeless fan uses the same principle. Small minds always claim they are the creator of new invention or ideas so that they are busy to apply patents for getting ownership of unproven ideas.
High speed air has lower temperature than slower air mass.