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Gas-powered leaf blowers can register as high as 100 decibels at the source (the levels decrease with distance). Most electric models range from 59 to 70 decibels.
Gas blowers run from 80 to 90 decibels, versus 59 to 70 decibels for electric blowers, according to the website LeafScore. The environmental benefits of going electric are substantial.
A leaf blower, commonly known as a blower, is a device that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors . Gasoline models have traditionally been two-stroke engines , but four-stroke engines were recently introduced to partially address air pollution concerns.
New study recommends migration to electric-powered lawn and garden equipment because the planet is showing severe signs of climate distress.
An oil diffusion pump is used to achieve higher vacuum (lower pressure) than is possible by use of positive displacement pumps alone. Although its use has been mainly associated within the high-vacuum range, down to 1 × 10 −9 mbar (1 × 10 −7 Pa), diffusion pumps today can produce pressures approaching 1 × 10 −10 mbar (1 × 10 −8 Pa) when properly used with modern fluids and accessories.
Elliott Company designs, manufactures, installs, and services turbo-machinery for prime movers and rotating machinery. Headquartered in Jeannette, Pennsylvania, Elliott Company is a wholly owned subsidiary of the Japan-based Ebara Corporation, and is a unit of Elliott Group, Ebara Corporation's worldwide turbomachinery business.