Bad indoor air quality can really affect people’s health, so how can you improve indoor air quality? By improving ventilation, getting an air purifier, cleaning regularly and safely, doing source control, running exhaust fans, limiting aerosols and scented items, not smoking, testing for radon, regularly changing air filters, and controlling humidity.
Plants are not as effective at improving indoor air quality as other methods are. Those other methods are improving ventilation, cleaning, and investing in air purifiers. Plants can help with mental health and interior decor though. Some plants that help (although very minimally) with indoor air quality are the peace lily, english ivy, chinese evergreen, mass cane/corn cane, snake plant, bamboo palm, chrysanthemum, warneckii, janet craight, gerbera daisy, weeping fig, and marginata.