Class FFP1 filtering half-face mask provides protection against solid and liquid aerosols in concentrations up to 4.5 x PEL. It is a foldable respirator with polypropylene filter medium. Perfect comfort and full protection is provided by the internal foam reinforcement with adjustable nose clip. The expiratory valve reduces exhalation resistance and increases respirator life. The respirator is suitable for light work in construction, engineering, agriculture and forestry.