How Plants Clean the Air: One Leaf at a Time by Ellen The Hardcover of the How Plants Clean the Air: One Leaf at a Time by Ellen Lawrence at Barnes & Noble. FREE Shipping on $35.0 or more! Membership Educators Gift Cards Stores & Events HelpAuthor: Ellen LawrenceFormat: Hardcover How Plants Clean the Air: One Leaf at a Time (Science Slam How Plants Clean the Air: One Leaf at a Time (Science Slam: Plant-ology) [Ellen Lawrence] on Amazon. *FREE* shipping on qualifying offers. In this book, readers learn how plants clean the air Price: $24 9 Houseplants that Clean and Purify the Air | This Old House 9 Clean-Air Plants for Your Home. That means you'll want at least two plants (in 10- to 12-inch pots) per 100 square feet of space; if you're in the middle of major renovations, aim for more plants. One tip: Be sure not to overwater, as too much soil moisture can lead to mold growth.
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