---
title: What is the recommended sampling duration when using Air-O-Cells?
description: What is the recommended sampling duration when using Air-O-Cells?
---

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# What is the recommended sampling duration when using Air-O-Cells?

| The sampling time is dependent on the density of particulate in the environment. It is important not to overload the sample, otherwise it will be impossible to accurately count the types of spores, pollen or other particulates that are present. The following list represents typical sample times to attain a sharply defined trace with good dispersion of the spores:  1. Clean “office” or outdoors (no visible dust) = 10 minutes  2. Indoor environment, high activity & personnel = 5minutes  3. Indoor environment, drywall renovation or heavy industrial dust = 1 minute. |
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