Leafy clean: Air purifier cleans using a houseplant

"A new air filter is improving on nature to purify indoor air.

The Andrea Air filter enhances the power of plants to remove airborne pollutants, particularly formaldehyde. It works by using a fan to boost air flow through the leaves and roots of a houseplant and to draw the air through water and soil for additional filtration."

For more on this innovation, click here.