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Radon is a natural element in our atmosphere that comes from disintegration of radium. If high concentrations of radon enter our lungs, we increase the chances of getting radon in your area. To prevent yourself from radon, you should ventilate your home. Also, there are two ways to test for radon. The one of the test is passive test which uses the disc that corrects radon. Another test is active test, which uses electricity and continuously monitors the level. The best way to protect yourself from radon is to ask U.S. Environment Protection Agency to find out the level of radon in your area.