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high-efficiency particulate air filter |
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high-efficiency particulate air filter [‚hī i¦fish·ən·sē pər‚tik·yə·lət ′er ‚fil·tər] (mechanical engineering) An air filter capable of reducing the concentration of solid particles (0.3 millimeter in diameter or larger) in the airstream by 99.97%. Also known as HEPA filter. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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