Article: VAC MAKERS FIGHTING THE AIR WAR.

BLOOMINGTON, Ill.-It's a war in there.

It's a battle for vacuum cleaners to keep room air as clean as carpets and floors, and it's a battle among manufacturers claiming they do it best.

The latest development was an outside laboratory's study conducted for Eureka. "Lab officials noted that vacuum filtration has improved a great deal in recent years," Eureka said. Tests found a Eureka model spewed far less dirt into the air than two leading competitors' uprights.

IBR, a Grass Lake, Mich., lab, ran the three bagless HEPA machines empty to measure general operation, then with salt particles to quantify the escape of contaminants. Using the ...

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