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ST. PAUL -- Global concerns over avian influenza mean busy times for 3M Co. and other businesses that make air-filtering masks. Plants that make 3M's face masks have been running nonstop in recent ...
Some of the worst air quality levels on record on the East Coast are impacting consumer shopping patterns and driving air purifier stocks higher. People are rushing to buy air filters, humidifiers and ...
LOS ANGELES — With levels of sooty air pollution far too high across swaths of the Los Angeles area, Dana Benton is sleeping with a mask on, even with her air purifier running. “My car was just ...
Electrostatic adsorption is an important complement to mechanical filtration for high-efficiency air filtering in the use of face masks. However, the electrostatic charge of the filters decays over ...
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