If you're looking for a snake plant that is particularly good at air purification, the Sansevieria trifasciata 'Hahnii' is a great option. This variety of snake plant is known for its ability to remove toxins from the air, making it a perfect choice for those who want to improve the quality of their indoor air. Other varieties of snake plant that are also effective at air purification include the Sansevieria cylindrica and the Sansevieria trifasciata 'Laurentii'.