This respirator is used for mechanically generated dusts and mists from processing minerals including coal, iron ore and silica or cotton, flour and certain other substances in concentrations up to ten times the Occupational Exposure Limit.

However, it is not used for paint spraying and sandblasting applications or for protection against gases and vapors. Protection in areas where there is lack of oxygen because this respirator does not supply oxygen. Not for use in oil mist atmospheres.