Way quieter, but still noisy because of the whine of the engine and air. But also, for anything but small backyard jobs, they don't last enough or you have to e

Way quieter, but still noisy because of the whine of the engine and air. But also, for anything but small backyard jobs, they don't last enough or you have to end up with a backpack battery model. I'm sure that'll improve over time but for professional use, the energy density of petrol won't be beat.