Came across this article:

10 Best Plants to Grow Indoors for Air Purification

Keeping this in mind for our new place!

My favourite has got to be the Peace Lily:

This beautiful flower is a wonderful low-maintenance plant to keep in the home. Peace lilies do well in shade and cooler temperatures, and they can reduce the levels of a number of toxins in the air.

Article source: http://www.trueactivist.com/10-best-plants-to-grow-indoors-for-air-purification/
Photo source: http://www.ewildflowersflorist.com