A large bag constructed of a suitable fabric which is often tubular in shape, into
which a particle-containing air stream flows. Modern bags are constructed of a fabric
which is capable of collecting all but very fine particles in the gas stream. The
efficiency of the removal of particles of various size ranges changes with the amount
of particles captured by the
filter and the filtering time. The bag operates on the same principle as the one on a household
vacuum cleaner.
Source:
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2175