Urbanization and industrialization are growing at a rapid rate at a global level during the last decades. This has resulted in the hiking of air pollution to an enormous level, posing great environmental risks to public health. In an approach to conserve energy resources, houses were designed for energy efficiency, aggravating the situation by accumulating indoor air pollutants to dangerous level. Indoor air pollution extensively affects developing countries and indoor concentrations of some cancerous chemicals are between 5 and even up to 70 times higher than outdoors. Plants maintain the ecological balance by their involvement in the cycling of nutrients and gases like carbon dioxide and oxygen and are a viable source to combat air borne contaminants.
NASA conducted a Clean Air Study in association with Associated Landscape contractors of America and the most effective common indoor plants for filtering harmful toxins and harmful pollutants are as under: