00514naa#a2200181#i#450# EN\INFRA-M\bibl\10152 20241012120832.6 1998-071X 20151025b2015####ek#y0engy0150####ca RUS RU On Evaluation of Effectiveness of Respiratory Protective Devices Journal article Moscow INFRA-M Academic Publishing LLC. 2015 7 с. Journal article local Kaptsov V. Chirkin A. naukaru.ru