There are two types of swipes that are for use with the GammaPAL; Air swipes and Wipes for surfaces.
The GammaPAL includes wipes for surface testing and are able to be used with either The Inspector and Wipe Test Plate (included with The GammaPAL) for quantification or for use with the GammaPAL sampling matrix for qualification and identification.
Air Swipes are commonly found in an air pump line and are not included in The GammaPAL. They are a typically a small filter that collects the contents of the air passing through it. Most air filters will be able to determine the flow rate. So, for example, you can take a 1 liter sample of air with a fair degree of precision and use the filter to detect potential contaminants in the air via the filter based on a known volume.