“ CO2 Pump This is quite interesting if it can be used to pull CO2 out of the air. If your looking at large scale vertical growth algae farming for... (read full comment) ” 

Posted on September 17, 2008 at 11:30 PM EDT

“ CO2 Trap Actually if you read the text, its "easily" reversible, so sounds like you could use it for more than one use. The other thing that... (read full comment) ” 

Posted on April 28, 2008 at 9:10 PM EDT