Bioactive carbon dioxide filter apparatus and method therefor
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United States of America Patent
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Apr 2, 2013
Grant Date -
Jul 29, 2010
app pub date -
Dec 23, 2009
filing date -
Dec 23, 2008
priority date (Note) -
Expired
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Abstract
A bioactive filter is provided which comprises a transparent canister having gas permeable membranes as entry and exit ports. A source of carbon dioxide in gaseous form is allowed to enter the entry membrane and pass through a solution contained in the canister which supports a live colony of algae. The algae carries out photosynthesis thereby altering the carbon dioxide to oxygen and sugar. The oxygen is released through the exit port.
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