AST - Model PM2.5 - 2 LPM -Sampling Inlets for Use in Ultrasonic Personal Air Sampler

Four interchangeable size-selective particulate matter sampling inlets are available for the Ultrasonic Personal Air Sampler (UPAS): PM_2.5 @ 1 L min^-1 , PM_2.5 @ 2 L min^-1 , respirable @ 2 L min^-1 , and PM₁₀/Thoracic @ 2 L min^-1 . All inlets are compatible with both the UPAS v2 and UPAS v²⁺.

These inlets are designed to allow particles to pass through and reach the filter in a manner consistent with the U.S. Environmental Protection Agency (EPA) definition of PM_2.5. Each inlet is designed to have 50% penetration efficiency at an aerodynamic diameter of 2.5 µm.

For additional information on the design and performance of these inlets, see: Volckens, J., Quinn, C., Leith, D., Mehaffy, J., Henry C.S., Miller-Lionberg, D. Development and evaluation of an ultrasonic personal aerosol sampler, Indoor Air, 2017, 27(2), 409-416, https://doi.org/10.1111/ina.12318