Size-Fractionating Aerosol Generator

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Abstract
An aerosol generator has been developed and evaluated for applications where the aerosol concentration and size distribution need to be tailored to specific needs. In this device, a modified Wright nebulizer generates the primary aerosol whose concentration and, to a limited degree, size distribution are adjusted through selection of the pressure drop and the gas-to-liquid flow rate ratio. Further modification of the size distribution is achieved through virtual and solid-plate impaction so that specific aerosol concentration in specific size ranges can be chosen as the aerosol output.

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