The respirator X 310 SV FFP3 NR D is designed to protect
respiratory system against harmful effect of dust, solid and
liquid aerosols when OEL is ≤0,05 mg/m3
concentration of dispersed phase of aerosol does not exceed
30 x OEL (Occupational Exposure Limit),
APF=30 (Assigned Protection Factor),
NPF=50 (Nominal Protection Factor).