Hägele Cleanfix cooling fan: Expand your fanbase

Reversible cooling fans are pretty common these days. But this one really does come with a useful twist…

by Hubert Wilmer and Andrew Pearce

11 Jun 2021

Engineer Karl Hägele reckons that simply spinning a conventional fan backwards doesn’t generate much air blast. It is, he says, “Like trying to eat soup with an upside-down spoon.”