What is the duration of a Sniff Sample in radon testing?

In radon testing, a Sniff Sample is typically designed to capture a rapid snapshot of radon levels in a space over a short duration. This type of sampling is conducted to quickly assess whether there is an elevated presence of radon. The standard duration for which a Sniff Sample is taken is a few minutes, usually around 10 minutes. This brief testing period allows for a quick evaluation and is beneficial for determining immediate radon presence, especially in scenarios requiring rapid assessments. The short timeframe is effective for detecting substantial changes in radon levels, which can fluctuate due to factors like ventilation and occupancy.