filter Brand

filter class

Substances on which protects the filters of the brand

Marking color

А

1 \ 2

Vapors from gases and organic substances having a boiling point above 65 ° C (cyclohexane, benzene, xylene, toluene, acetonitrile, nitrobenzene, tetraethyl, phenol, furfural, and others).

В

1 \ 2

Of inorganic gases and vapors (chlorine, hydrogen sulfide, hydrogen cyanide, cyanogen chloride, carbon disulfide, iodine, etc.),in addition to carbon monoxide

Е

1 \ 2

Of acid gases and vapors

(sulfur dioxide, hydrogen chloride, phosphine, etc.).

К

1 \ 2

From ammonia and his organic derivatives