Radon can not be seen, smelled, really felt, or otherwise identified, apart from with a test. That's why, according to the whites plumbing west haven EPA, the only means to know for website sure if you have a radon problem Hop over to this website is to test.
Does opening windows reduce radon?
Opening windows improves air circulation and ventilation, helping move radon out of the house and mixing radon-free outside air with indoor air. Opening basement windows helps reduce negative air pressure, diluting radon with clean outdoor air.