I can see a value to mitigators as a grab test but I can't believe an hour test means anything as a radon test. Too much changes from hour to hour. Less than 48 spaced samples makes no sense to me.

No, but my memory is that is 1/2 (or 10) cigarettes. Does anyone know if that's correct?

You suggested that ventilation before and during the radon test?

You

These are used for mitigation only. There have been inspectors who've used these during an inspection to 'perform a radon test' and that is NOT ok