The Comprehensive Effectiveness of the Domestic NEVA® Filter Material and Respirators Based on it for Protection Against Radioactive Aerosols

These results present the results of testing the new NEVA® filter material, manufactured by Respiratory Complex LLC, for its effectiveness in capturing radioactive aerosol particles under various operating conditions. The object of investigation was a radon-222 box with its progeny as aerosol particles with sizes in the 250–400 nm range. The average permeability of the NEVA® filter material in this atmosphere of aerosol particles was 0,074% (average material protection factor of 2120), 0,085% for RK 7730 and RK 7731 (material protection factor of 1325), and 0,041% for R-2U (material protection factor of 2660).