protection from atoxic and non-fibrogenic kinds of dust
inhaling may result in development of health conditions; can also irritate the respiratory system and cause unpleasant odors
total leakage may amount to a maximum of 25 %
this kind of mask may be applied under a fourfold OEL transgression at the most
Protection class FFP1 respirator masks are made for working environments in which neither poisonous nor fibrogenic kinds of dust and aerosols are to be expected. They filter at least 80 % of the particles measuring up to 0.6 μm and may be worn as long as the maximum workplace concentration transgression measures no more than the fourfold value. The building or food industry put FFP1 respirator masks to use in many cases.