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This Old House
Max Alexander |
Clearing the Air Whole-house and portable filters trap dust, pollen, and more   |
Military & Aerospace Electronics
November 2005 |
Extended-surface air filters boost air flow Universal Air Filter says the extended-surface air filters can be used for applications in which space is limited and a design requires maximum air flow. |
U.S. CPSC
January 28, 2004 |
Sta-Rite Industries Recall of Pool Filters The Posi-Lok locking ring, which secures the filter's upper tank shell to the lower tank shell, can disengage from the lower tank shell allowing the top shell of the filter to blow off, causing injury to nearby consumers. |
Popular Mechanics
April 2003
Mike Allen |
Replacing Your Cabin Air Filter Maybe you need to change the cabin air filter. If it's plugged, the passenger compartment might as well be a sealed cabin -- and with a carload of friends the glass will fog in minutes. |
Technology Research News
January 14, 2004 |
Fiber optics goes nano Researchers from Harvard University, Zhejiang University in China and Tohoku University in Japan have made glass optical fibers as thin as 50 nanometers that guide light without losing much of it. |
