How will houseplants purify the air

The relevant NASA research document states that

Indoor plants can purify and improve the air in our homes and workplaces and protect us from any harmful effects that can be associated with common toxins such as formaldehyde, ammonia and benzene.

The top ten indoor plants for clean air

The ten best plants for indoor air purification, according to this NASA study, are the following:

Green lily, ivy and dragon trees purify the air

The green lily, a popular traffic light plant, for example, manages to reduce the formaldehyde content of a closed chamber (which was 10 times higher than in normal living room air) by 86 percent within 24 hours.

Benzene is best broken down by ivy, 90 percent within 24 hours. Trichlorethylene can also be reduced by ivy, namely by up to 11 percent. However, ivy likes it cool in winter, so it does not survive for too long in heated rooms or becomes susceptible to pests there. He therefore feels most comfortable in stairwells.

The leaf flag creates almost similar values ​​for benzene as ivy and even reduced trichlorethylene by up to 23 percent.

The dragon tree is ideal for the destruction of formaldehyde. He eliminated 70 percent of the chemical within 24 hours. But benzene and trichlorethylene are also removed in high percentages from the plants of the dragon tree family as well as from the efeutute.

If you let these plants move into your home or office, you not only beautify your rooms with a natural green decoration, but also ensure chemical-free, fresh and oxygen-rich air, so that you can breathe deeply and relaxed again.


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  • Wolverton, B. C., A. Johnson and K. Bounds, "Interior Landscape Plants for Indoor Air Pollution Abatement," NASA / ALCA Final Report, Plants for Clean Air Council, Davidsonville, Maryland, 1989.

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