Many of us spend a lot of time indoors, particularly this time of year here in the northern climates. We can't open windows and the air inside can get a little stale. You've probably hear that the air in our homes can often be more polluted than the air outside, due to cleaning products, chemicals released into the air by furniture and building materials. Formaldehyde is found in just about all indoor areas. It is used in just about everything now, especially pressed wood and particle board but also comes from things like: carpet, clothing, fire retardants, etc. Other sources come from our heating systems and cigarette smoke. This formaldehyde can cause eye, nose, throat and lung irritation, as well as headaches, dermatitis and allergy problems. It is also linked to a rare type of lung cancer. The scary thing is that formaldehyde is only one type of indoor pollution we also have to worry about: benzene, xylene and toluene and I'm sure more we don't know about yet.
Of course you could get a pricey air cleaner that uses electric and that's most likely made out of plastic, which ironically will probably offgas chemicals into your home while it cleans the air. Houseplants do a much better job and do it for free (after purchase of course, but you can get them free often if you know someone that has a few, most are quite easy to propagate). One potted plant will clean roughly a 100 square foot space in the average home or office. I live in a 1000 sq foot home and I have a plant in each room, 15 in the living room, 7 in the kitchen/dining and about 15 in the basement to help clean the air down there.
Certain plants work better than other things at cleaning the air in our homes. Different plants help clean different chemicals out of the air, so it's beneficial to have a variety of plants. You can even have plants that are edible so you get food as they clean the air.
Here's a list of a few plants and the chemicals they each clean out of the air.
Boston fern, golden pothos, philodendron, and spider plants reduce levels of formaldehyde.
Areca palm, moth orchid, and the dwarf date palm can remove xylene and toluene.
Gerbera daisy, chrysanthemum, spider plants and peace lily can remove benzene.
Other beneficial houseplants include: bamboo palm, Chinese evergreen, English ivy, indoor dracaena species and the snake plant (also known as mother-in-law's tongue).
I have always had houseplants (probably because I grew up in a jungle of houseplants). The pothos in the first photo was on the stage at our wedding, and it's been cleaning the air in our various homes for the past 13 years. I also have a dwarf citrus, a few other pothos that I've propagated from this mother plant, baby tears, mother-in-law's tongue, dumb cane, a few ivy plants, aloe, a few succulents, and a collection of herbs including: lemon thyme, seasoning celery, parsley, rosemary, lemongrass, lemon geranium, lemon verbena, and a few more. We have houseplants not just to clean the air, they also provide some much needed green in the our home during the dark snowy winters in Ohio which is good for the soul!
Do you have houseplants? Are they for cleaning the air or for enjoyment?
I can also be found at Chiot's Run where I blog daily about gardening, cooking, local eating, beekeeping, and all kinds of stuff. You can also find me at Not Dabbling in Normal, and you can follow me on Twitter.