Выводы
Полученные результаты показали, что у разных типов респираторов разные коэффициенты защиты. Некоторые из проверявшихся респираторов обеспечивали слабую защиту, или совсем не защищали. Другие обеспечивали очень надёжную защиту. Полученные результаты также показали, что вентиляторы влияют на защитные свойства респиратора разными путями – они подают чистый воздух для дыхания, очищают подмасочное пространство от загрязнённого воздуха и, возможно, вносят вклад в просачивание у СИЗОД с ППВ. В статье описан (новый) показатель – эффективность вентилятора – который позволяет оценивать способность вентилятора обеспечивать сотрудника чистым воздухом.
Благодарности
Проведение этой работы финансировалось Национальной лабораторией технологии средств индивидуальной защиты (National Personal Protection Technology Laboratory) Национального института охраны труда и (National Institute for Occupational Safety and Health) (NIOSH-NPPTL) Контракт 200-2202-00531.
Ссылки
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