Suctioning renders cities clean but they also make them very noisy

You can not NOT hear it, when these kind of city trucks pass by. They cleanse the city, and ensure the Autumn leaves are gone. When I wanted to enter our Antwerp office yesterday, I noticed the heavy noise of the suctioning of dust and leaves of this truck. I think it is a diesel truck, but I could not hear the engine of the truck. I only heard the enormous sound of the suctioning. So, changing the engine would not even be the biggest factor in noise reduction – it would clean the air though. And it’s not only these big machines that are noisy. It surprises me that even a home vacuum cleaner is a very noisy device, and that device is 100% electric.

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