According to research conducted by Dr. B.C. Wolverton, at least two “good sized” plants per 100 square feet of interior space are recommended to effectively purify the air in a room. However, it’s important to note that without expensive testing, it is difficult to determine the exact number of plants needed to completely clean a room of all contaminants.
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Although plants do absorb carbon dioxide, they are not as effective as air purifiers in removing other air pollutants like volatile organic compounds (VOCs). While it is true that houseplants can remove VOCs from the air, the rate at which they do so is not significant enough to be considered as air purifying devices.
Therefore, while plants can contribute to improving indoor air quality to some extent, it is recommended to also use air purifiers for more effective removal of pollutants. Air purifiers are designed specifically for this purpose and can efficiently remove a wide range of contaminants from the air, providing cleaner and healthier indoor environments.
In conclusion, while having plants in a room can help improve air quality to some degree, their ability to purify the air is limited compared to dedicated air purifiers. Therefore, a combination of both plants and air purifiers is the most effective approach to ensure clean and healthy indoor air.