A uniform aerosol deposit sampling device includes a first housing and a
second housing. The first housing has an air inlet and a first chamber.
The second housing has an air outlet, an second chamber, a filter holder
and a flow guiding portion. The filter holder is provided for securing an
air-penetratable supporting pad and a filter media. The flow guiding
portion is a substantially conical and gradually narrowing. The flow
guiding portion has a semi-conical angle ranged from 15 to 85 degrees.
So, the flow guiding portion makes the entire air flow smooth and evenly
distributed. The aerosols will be evenly distributed and uniformly
deposited on the filter media. And, it is easy to evaluate the amount and
composition of the aerosols.