Article: Sales are billowing for air purifiers, and so is the competition.

Byline: Susan Chandler

Oct. 24--Pat Boone is crooning a different tune these days.

He is singing the praises of Living Air, a high-tech air purifier that promises to scrub indoor air clean of everything from fish odors to cigarette smoke.

"You can survive weeks without food, days without water but only minutes without air," Boone says in ads on Chicago radio. "It just makes sense for your family to breathe fresh air."

Helping consumers breathe easier has become a big business. In the last five years, U.S. sales of air-cleaning systems shot up 34 percent, to $395 million in 2003, according to a study by the Freedonia Group Inc., an ...

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