The gardener in my last apartment replaced all of his powertools (mower, blower, trimmer, …) with electric ones powered by an accu-pack he carries on his back. This is an absolute game-changer! I could actually sit outside again and even do stuff for work, when he was there.

This thing influence how air moves through it, so it would make electrics more silent too

Pretty sure when I saw the original post talking about the design, they said the students were only working with electric leaf blowers. So this was designed to make electric leaf blowers even quieter.

This was designed for electric leaf blowers, not gas leaf blowers.

Electric leaf blowers are much much better, but they’re still loud, and that’s what these students were attempting to address.

The video in the article shows them testing with an electric leaf blower.