20. Dracaena (Dracaena marginata and others)

Dracaenas, such as the well-known dragon tree, are valued for their dramatic, upright growth and sword-like leaves.
These striking houseplants are also effective at filtering out a variety of indoor pollutants, including formaldehyde, benzene, trichloroethylene, and xylene.
Their bold foliage makes them a stylish and functional addition to any modern interior.
For growing tips and more details, visit The Spruce.