A filter-based air sampler, more specifically a filter-based air sampler capable of integration into small unmanned aerial systems is disclosed. The filter-based air sampler may include a filter assembly which has as its component parts: an open faced air intake component, a filter, and a filter support that has a central supporting grid. The filter assembly may joined to the housing of a fan, such as a centrifugal fan, with the supporting grid of the filter support being disposed over the air inlet of the fan.
U.S. Patent and Trademark Office
Eninger, R., Ohms, S., & Slagley, J. (2023). Filter-based air sampler capable of integration into small unmanned aerial vehicles (Patent US11619570B1).