The
AFP series of air
filtration panels use three
stage filtration to help
provide Grade D breathing air
as defined by the Compressed
Gas Association. The first
stage filter is a prefilter
to take out large
particulates and condensed
water and oil. The second
stage filter is a coalescer
filter to take out much
smaller particles and vapors,
99.9% efficient down to 0.3
microns. The last stage is a
charcoal adsorber which
filters out odors and tastes
which can be uncomfortable to
workers
