All plants clean air: The above plants all went through the clean air study with NASA. However, it is well known that all plants have some connection with improving air quality through photosynthesis. I would imagine having any type of plants indoors can help reduce toxic pollutants (no need to only choose the plants from the study).
Sick building syndrome: SBS is a term used for people who suffer some type of bad health symptoms without a specific illness diagnosed. One of the mentioned causes is from chemicals used within building materials inside the home which plants may help to remove (such as formaldehyde). There are various opinions from specialists about SBS and the term is not used as much today. See wiki article here.