Everywhere I am there is a guy running a leaf blower. At my house, leaf blowers everywhere all day long. At work, of course, leaf blowers blowing dirt and allergens into the air. It’s such a special noise, it goes through walls and headphones so effectively. They are the most pervasive, annoying things on the planet. I hate them more than mosquitoes.
Or even an electric leaf blower. They’re like half the noise.
They work absurdly well, too. Ours takes the same battery pack as the lawnmower and a few other things and it’s basically inaudible if you don’t have direct line of sight on the unit.