ADEME considers that the argument “depolluting plants” is not scientifically validated in view of the levels of pollution generally encountered in homes and new scientific knowledge in the field.
In terms of improving indoor air quality, the priority remains the prevention and limitation of sources of pollution (maintaining water heaters and boilers, reducing the use of household chemicals, etc.) accompanied by ventilation or more generally a ventilation of the premises (maintenance of the ventilation system, do not block the ventilation holes, open the windows every day for a few minutes, etc.).
Source: http://www2.ademe.fr/servlet/KBaseShow? ... atid=23865
Ratio: https://www.econologie.info/share/partag ... pOBAmx.pdf