Benzene - a common solvent found in oils and paints.
Trichloroethylene - used in paints, adhesives, inks and varnishes.
Formaldahyde - used in building materials like particle board and foam insulation.

Many of these plants originate from tropical areas where they are adapted to low light conditions underneath dense canopies.  They survive in low light by being ultra-efficient at capturing light and processing gasses necessary for photosynthesis.

NASA recommends at least one of these plants (6-8 inch container) per 100 sq ft of floor space. 

Heartleaf Philodendron
Elephant Ear Philodendron
Massangeana
English Ivy
Spider Plant
Janet Craig Dracaena
Warneckii Dracaena
Weeping Fig
Golden Pothos
Peace Lily
Selloum Philodendron
Chinese Evergreen
Bamboo
Snake Plant
Red-Edged Dracaena