The colourful flowering plant not only makes the house look beautiful but is an excellent indoor plant for oxygen. As per NASA's Clean Air Study, Gerbera Daisy removes pollutants from the air like formaldehyde, benzene and trichloroethylene.

Adding plants to interior spaces can increase oxygen levels.At night, photosynthesis ceases, and plants typically respire like humans, absorbing oxygen and releasing carbon dioxide. A few plants –orchids, succulents and epiphytic bromeliads –do just the opposite, taking in carbon dioxide and releasing oxygen.

Oxygen plants are industrial systems designed to generate oxygen. They typically use air as a feedstock and separate it from other components of air using pressure swing adsorption or membrane separation techniques.