The Boston fern (Nephrolepis Exalta) is an effective air purifying indoor plant that’s quite easy to care for. The Boston fern produces more oxygen than the average plant, and therefore part of the ‘Air so Pure’ label.
Place the Boston fern in a light spot, in filtered sunlight. Water the plant twice a week during spring and summer. During fall and winter you’ll only need to water it once a week. The plant will build up some reserves in its leaves, so it won’t mind if you forget to water it every once in a while.