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HFI High Flow Impactors

Built upon the same technology as MSP’s long-standing MOUDI™ impactors, high-flow impactors are ideal for investigating airborne particulate matter (PM) in pristine environments. Doing so provides valuable context for interpreting air quality research conducted in highly-polluted areas, such as densely-populated cities or in industrial centers. Taken together, these measurements contribute significantly to our understanding of how air quality affects public health.

A high sampling flow rate of 100 L/min shortens the sampling time needed for collecting enough particulate matter to successfully measure its mass and/or chemical composition. This high flow rate permits valid background data to be gathered up to ten times faster than would be possible using a conventional impactor, literally saving days in field measurement campaigns.

HFI High Flow Impactors 128, 129, 130, 131

Models 128, 129, 130 and 131 are High Flow Impactors (HFI) ideal for sampling particles at low concentrations (pristine environments), for collecting more mass per stage as compared with conventional MOUDI™ impactors, or for obtaining samples in shorter sampling intervals.

Attention: The 128, 129, 130A, 130B and 131A MOUDI™ Impactors will reach their end of life effective December 31, 2024. However, the 131B model will remain available for your needs.