Various other occasions, like heavy winds, can trigger radon levels to either rise or fall. Basically, weather condition events can trigger your radon degrees levels to either increase or loss. All kinds of weather condition affect your test-- and there's no simple way to recognize precisely which way your examination was affected. The test period is minimal 2 days for a house that has been prepared, and also if not, the house should stay closed for an added 12 hour duration.