Can ferns really purify the air?

Many plants can help improve air quality They can filter harmful chemicals and increase oxygen content Apartments and small rooms are particularly suitable for growing ferns, because they do not need too much maintenance and do not have high requirements for the climate and environment, so they are particularly good for indoor air purification NASA has long been studying the use of plants to clean and maintain air quality In the space lab project, NASA began to look for cheap, low maintenance plants, such as ferns, to try to use them to maintain the air quality of the human living space station Many indoor plants can absorb harmful chemicals in the air, and make them fixed in the soil and become relatively harmless Although it has been known for a long time that plants can absorb carbon dioxide and release oxygen during photosynthesis, which is helpful to improve the air quality of animals' respiration, it is only in recent decades that they have many benefits other than providing oxygen For example, many plants can effectively absorb trichloroethylene, benzene and formaldehyde, three common pollutants Architecture has become a source of toxin in modern society Thanks to the heavy use of chemicals such as plastics, the new house is filled with toxic gases that can cause illness to residents Plants can help reduce or eliminate this problem Formaldehyde is a toxic substance existing in almost all modern buildings Formaldehyde can cause nausea, headache, dizziness, skin irritation, shortness of breath and other toxic symptoms Ferns can effectively remove formaldehyde from the air This means that placing the plant indoors can directly eliminate the formaldehyde released by the toxic gas Health experts recommend two pots of plants in a 10 square meter room Although there are many plants that can absorb dangerous toxins, ferns are the easiest to maintain and do not require high growth environment For example, areca tree can absorb xylene very well, which is another dangerous toxic substance In addition, dwarf dates, Chlorophytum and lilies are also good for improving air quality and reducing pollution.