Radon can not what are the symptoms of radon gas poisoning be seen, scented, felt, or otherwise found, other than with a test. That's why, according to the EPA, the only method to recognize for certain if you have a radon issue is to examination.
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.