Britannica Sources used in this answer

Which chemicals can peace lilies remove from indoor air?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Peace lilies (Spathiphyllum) are popular houseplants valued for their ability to thrive in low-light conditions. Contrary to the common name, they are not true lilies.

Regarding their air-purifying capabilities, a 1989 study conducted by NASA found that peace lilies can remove the following chemicals from indoor air:

While these plants are effective at filtering certain indoor pollutants, it is important to note that they are considered mildly toxic to humans and pets. Their leaves contain calcium oxalate crystals, which can cause skin irritation upon contact and a burning sensation or nausea if ingested.2