Purify room air in just 20 Mins – Smart Plant Innovation by IIT Alumnus (www.thebetterindia.com)

This is a device that combines the air purifying capability of plants with technology to amplify the output of purified air. The device uses a bio-filtration technique in which the plant absorbs polluted air, pushes it into the soil where the root takes care of suppressing the pollutants and gives out clean air. All this happens within 20 minutes.

Check it out.