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Did you know that levels of common pollutants in indoor air can be 2-5 times higher (and sometimes up to 100 times higher) than outdoor air? Given the fact that we spend 80-90 percent of our time indoors, every step we can take to clean up indoor air counts. Breathe easier using these 25 ways to improve your indoor air quality.

Here are two tips from our free “One Small Act” social gaming platform that has hundreds of ways to green your life.

Get a houseplant to improve indoor air quality.

Houseplants are always a welcome addition to any home. But they can leave us with more than beauty. Choose the right varieties and you’ll grow healthier indoor air, too. Pretty cool.

In the 1980s, NASA scientists researching air quality in space discovered that many houseplants excel at absorbing common toxic substances like formaldehyde, benzene, and acetone from indoor air. Studies also show that rooms filled with house plants typically contain 50 to 60 percent fewer mold spores and bacteria. These air quality improvements can make a big difference. According to researchers at the Lawrence Berkeley National Laboratory, cleaning up indoor air pollution could save the country up to $4 billion by reducing asthma and allergies, and another $14 billion in medical costs associated with respiratory disease.

The more plants you use, the healthier your air will be. But it doesn’t take a lot—one study found that small groups of Janet Craig (if you’re no gardener, that’s actually the name of a plant) and sweet chico plants placed in indoor spaces reduced levels of certain gases up to 75 percent. Bonus: they look nice.

Here are the top 10 most effective purifying plants:

1. Boston Fern (Nephrolepis exaltata Bostoniensis)

2. Areca Palm (Chyrsalidocarpus lutescens)

3. Lady Palm (Rhapis excelsa)

4. Bamboo Palm (Chamaedorea seifrizii)

5. Rubber Plant (Ficus robusta)

6. Dracaena Janet Craig (Dracaena deremensis)

7. English Ivy (Hedera helix)

8. Dwarf Date Palm (Phoenix roebelenii)

9. Ficus Alii (Ficus macleilandii alii)

10. Peace Lily (Spathiphyllum sp.)

Find a DIY cleaning recipe.

The ingredients in some conventional cleaning products can negatively impact both personal health and the environment. While green alternatives from natural product companies tend to be free of the worst offending chemicals, and are usually plant (not petroleum) based, consumers should still read ingredient lists and fine print when shopping.

There’s another alternative: to truly know what’s in your cleaning products, make your own using safe-for-the-environment-and-you household staples like vinegar, lemon juice, hydrogen peroxide, washing soda, salt, and baking soda. Many of these ingredients and DIY formulas have been used for generations and get the job done. Bonus: making your own can save you money.

Laundry detergents, window cleaners, furniture polish, the internet is filled with “recipes” for safe and effective cleaning products you can make at home. Get started today using some of the recipes below!

Check out all of these awesome ideas from some of our favorite green bloggers:

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