Spider plants remove formaldehyde and other pollutants from the air.
Place fresh flowers like hyacinths, lilies, roses and lilacs around the house to add a nice aroma. An air purifier with a changeable or cleanable filter also improves the quality of air in your home. They remove tobacco smells, cooking odors, pollens and dust mites . Humidifiers are a good idea also if the moisture in the air isn't at the right level. The humidity in a home should be at about 50 to 55 percent.