These filter classes are minimum requirements and simply serve as a guide. It is the wearers' responsibility to make sure the breathing apparatus conforms to the requirements in terms of hazardous materials and concentration before use!
FFP 1: for particles that are neither toxic nor associated with fibrosis. For protection up to 4 times the corresponding threshold limit value
FFP 2: for hazardous or harmful particles, vapour and smoke; filters for solid and liquid particles with a medium filtering level. For protection up to 10 times the corresponding threshold value
FFP 3: for poisonous particles, vapour and smoke; filters for solid and liquid aerosols with a high filtering classification. For protection up to 30 times the corresponding threshold limit value
R labelling: The mask has been tested for reusability and has the required performance features for wearing during a second work shift.
NR: non reusable
D labelling: The mask has undergone additional dolomite dust testing and therefore affords excellent breathability, even in extremely dusty environments and during longer periods of use. Speciality Disposable Respirator with integrated activated carbon layer for additional protection up to 4 times the TLV and reduced nuisance level, organic vapours below TLV. Effective protection due to exact and tight fit. Model 9914 with Cool Flow™ Valve.