Question
I am interested in buying the best plants for providing oxygen and purifying the air in my home. Can you please recommend some.  Thank You.

Answer
Ben,

Below is the list of the 10 best air cleaning plants as determined by NASA.  http://www.zone10.com/tech/NASA/Fyh.htm

They remove formaldehyde, benzene, and carbon monoxide from the air.

Common Name             Scientific Name  
Bamboo Palm             Chamaedorea Seifritzii  
Chinese Evergreen       Aglaonema Modestum  
English Ivy             Hedera Helix
Gerbera Daisy           Gerbera Jamesonii
Janet Craig             Dracaena "Janet Craig"  
Marginata               Dracaena Marginata  
Mass cane/Corn Plant    Dracaena Massangeana  
Mother-in-Law's Tongue  Sansevieria Laurentii  
Pot Mum                 Chrysantheium morifolium  
Peace Lily              Spathiphyllum "Mauna Loa"  
Warneckii               Dracaena "Warneckii"  

Good luck.
Darlene