Houseplants: Get a collection of three purifying houseplants. Removes toxins: All shown to remove toxins and pollutants from the air. Sizes: Supplied as 10-20cm plants in 12cm pots. Spider plant: Includes a spider plant, peace lily and snake plant. Reduce stress: Can help to reduce your stress levels. Two plants: Upgrade to get two of each plant! Air Purifying Houseplant Collection | Living Social