For particulate sampling, the MiniVol™ uses 47mm filters to collect particulate matter. Filters should be weighed pre- and post-exposure with a microbalance accurate to one microgram. Airmetrics offers the following types of filters:

‧Fiber Film Filter - Teflon-coated glass, ideal for gravimetric analysis
‧Pure Quartz Filter - Recommended if chemical analysis for carbon based compounds will follow gravimetric analysis
‧Pure Teflon Filter - Recommended if chemical analysis for non-carbon based compounds will follow gravimetric analysis