Viable particles can be collected on a variety of
bacteriological agar and incubated in-situ for counting and
identification. The sampler is calibrated so that all particles
collected, regardless of physical size, shape, or density are
sized aerodynamically and can be directly related to human lung
deposition. - Constructed with six aluminum stages that are held
together by three spring clamps and sealed with O-ring gaskets;
each impactor stage contains multiple precision-drilled orifices
- Collection plates are prepared by aseptically pipetting 27mL
of sterile bacteriological agar into each of six glass Petri
dishes supplied with instrument - Air to be sampled enters the
inlet cone and cascades through the succeeding orifice stage
with successively higher orifice velocities from Stage 1 to
Stage 6 - Successively smaller particles are inertially impacted
onto the agar collection surfaces - A continuous-duty vacuum
pump provides constant air sampler flow of 1 cfm