Specialists came to the conclusion that even the usual ventilation of a room is much more effective than a few dozen indoor plants, according to Nature.
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Now it’s hard to say where the statement came from that indoor plants purify the air in the room. Most likely, the impetus to this statement was given by scientists from NASA in the 1980s, when they were looking for a way to clean the atmosphere on board the space station.
After a series of experiments, they came to the conclusion that plants are able to solve this problem. However, scientists from Drexel University drew attention to the fact that the experiments were performed in laboratory conditions. Plants were placed only in small airtight containers, and this does not mimic the real conditions of the room at all.
The best way to clean the air in a room is through an open window.
Typically, the pot is placed in a sealed vessel containing a cubic meter of air or even less. The target volatile substance is injected into it and its concentration is monitored for some time,
– Explains researcher Michael Waring.
The research team reviewed dozens of studies on this topic over the past 30 years, as a result of which they calculated the effectiveness of plants on the intensity of clean air supply.
It turned out that not only active ventilation, but also natural streams of fresh air clean the rooms much more efficiently than indoor plants.
The conclusion of the study: several open window leaves work with the same efficiency as hundreds or even thousands of flowers in pots on each square meter of a room or office.
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