According to a NASA study there are several house plants that will improve air quality.

Here is their top ten list:

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")

Here are a few I would add to the list:
Philodendrons
Dumb cane (Deiffenbachia)
Spider plants (Chlorophytum comosum)
Ivy (Helix)
Ficus

If you want to improve the air quality of your home contact your local florist who should have one or more of these plants ready and available for delivery.

Find Peace Lilies Here
Find Chinese Evergreen Here
Find Parlor Palm Here
Find Dumb Cane Here