TYPE/
◉ A Organic gases and vapors with boiling point >65°C
◉ AX Organic gases and vapors with boiling point ≤65°C
◉ B Inorganic gases and vapors (e.g. chlorine)
◉ E Acid gases and vapors (e.g. sulfur dioxide)
◉ K Ammonia and derivatives
◉ Hg Mercury
◎ P Particles, dust, fibers, smoke, mist, microorganisms
CLASS/ (capacity)
· Class 1 (low capacity): 0,1 vol.-% or 1.000 ppm
· Class 2 (medium capacity): 0,5 vol.-% or 5.000 ppm
· Class 3 (high capacity): 1,0 vol.-% or 10.000 ppm
CLASS/ (efficiency)
· Class 1 (low efficiency): 80%
· Class 2 (medium efficiency): 94%
· Class 3 (high efficiency): 99,95%
EXAMPLE/
So, for example, filter ABE2 P3 R offers protection against:
Organic gases and vapors with boiling point >65°C.
Inorganic gases and vapors.
Acid gases and vapors.
Particles, dust, fibers, smoke, mist, microorganisms.
Is classified as Class 2 in terms of capacity, which means it can be used only if the concentration of the pollutant in the workplace is not higher than 5.000 ppm (parts per million).
And is classified as Class 3 in terms of efficiency, which means it has a 99,95% particle filtering efficiency.