Grow your own fresh air

 I know in the past they were postings of best indoor plants.
While watching a selection of short videos on TED the five minute lecture
came up.
I thought you might enjoy as well.

http://www.ted.com/talks/kamal_meattle_on_how_to_grow_your_own_fresh_air.html

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Enjoy Life... Nad R  (Garden in zone 5a Michigan)