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2. Leaf blower - Wikipedia

   en.wikipedia.org/wiki/Leaf_blower

   There are currently twenty California cities that have banned leaf blowers, sometimes only within residential neighborhoods and usually targeting gasoline-powered equipment. Another 80 cities have ordinances on the books restricting either usage or noise level or both. [18] Washington, DC, passed a ban on gas-power leaf blowers in 2018. [19]

3. States and towns consider banning gas-powered leaf blowers ...

   www.aol.com/news/states-towns-consider-banning...

   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.

4. Soot blower - Wikipedia

   en.wikipedia.org/wiki/Soot_blower

   A sootblower is a device for removing the soot that is deposited on the internal furnace tubes of a boiler during combustion to prevent plugging of the gas passes and maintain boiler efficiency. The world market leader is Clyde Bergemann Power Group. [citation needed] Types of soot blowers: Wall Blowers also known as IRs (Insertable Rotating)

5. Sonic soot blowers - Wikipedia

   en.wikipedia.org/wiki/Sonic_soot_blowers

   Sonic soot blowers are normally constructed from fabricated, 316 grade stainless steel as opposed to some sonic horns which are manufactured from heavy cast iron.For installations in harsher environments, such as high temperature or acidic gas streams, other types of stainless steels are used such as 310, 316 and 825.

6. Florida cities want to ban noisy gas leaf blowers, go ... - AOL

   www.aol.com/news/florida-cities-want-ban-noisy...

   A last-minute Senate amendment would pre-empt bans on gas-powered leaf blowers. Florida cities want to ban noisy gas leaf blowers, go electric. Tallahassee may stop that

7. Bellows - Wikipedia

   en.wikipedia.org/wiki/Bellows

   Diagram of a fireplace hand-bellows. A bellows or pair of bellows is a device constructed to furnish a strong blast of air.The simplest type consists of a flexible bag comprising a pair of rigid boards with handles joined by flexible leather sides enclosing an approximately airtight cavity which can be expanded and contracted by operating the handles, and fitted with a valve allowing air to ...