The ornamental design for an airsamplingfilter, as shown.
FIG. 1 is a top front isometric view taken from one side of an air sampling
filter showing my new design, with the filter element disposed in its
holder;
FIG. 2 is a bottom rear isometric view thereof taken from the other side,
with the filter element disposed in its holder;
FIG. 3 is an exploded top front isometric view thereof taken from one side,
with the filter element removed from its holder;
FIG. 4 is an exploded bottom rear isometric view thereof taken from the
other side, with the filter element removed from its holder.