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Air Sampling for Mold Inspections
Taking air samples during a mold inspection is important for several reasons.  Mold spores are not visible to the naked eye, and the types of mold present can often be determined through laboratory analysis of the air samples.  Having samples analyzed can also help provide evidence of the scope and severity of a mold problem, as well as aid in assessing human exposure to mold spores.  After remediation, new samples are typically taken to help ensure that all mold has been successfully removed.
Air samples can be used to gather data about mold spores present in the interior of a house.  These samples are taken by using a pump that forces air through a collection device which catches mold spores.  The sample is then sent off to a laboratory to be analyzed.  InterNACHI inspectors who perform mold inspections often utilize air sampling to collect data, which has become commonplace.
 
Air-Sampling Devices
There are several types of devices used to collect air samples that can be analyzed for mold.  Some common examples include:
impaction samplers that use a calibrated air pump to impact spores onto a prepared microscope slide;
cassette samplers, which may be of the disposable or one-time-use type, and also employ forced air to impact ... more

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