Comment by Garek Hodes on March 19, 2021 at 1:09am

Hi,

Gasoline models have traditionally been two-stroke engines, but four-stroke engines were recently introduced to address air pollution concerns partially. Leaf blowers are typically self-contained handheld units or backpack mounted units with a handheld wand.
The latter is more ergonomic for prolonged use. Larger units may rest on wheels and even use a motor for propulsion. These are sometimes called “walk-behind Lightweight Leaf Blower” because they must be pushed by hand to be operated.

Thank you.

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