Stale Air in the Home:  Instead of using mechanical air filters you can use nature's air filters - plants. Tests show that common houseplants remove pollutants as they go through their natural process of photosynthesis.  Plants are very effective at removing gases such as formaldehyde, carbon monoxide, benzene, cigarette smoke, and ozone which are harmful for us to breathe but are a gourmet meal for a plant.  Aloe vera, bamboo palm, common chrysanthemums, dracaena palms, spider plants, and philodendrons are some of the best air filters. It takes about 15 good size plants to adequately purify the air in an average home.  Then add to the welcoming scent of your home with Vanilla Liquid Air Freshener.