Improving the protective efficiency of elastomeric filter respirators
Keywords:filter respirator, breathing resistance, performance, protective efficiency, exhalation valve
A hypothesis regarding the fact that the protection factor in filter respirators of one protection class should be increased while a decrease in resistance of their filters (without changing the penetration coefficient value) was worked out. Calculations of the protection factor of two produced types of respirators with the different resistance of the filters were performed. It is shown that a decrease in resistance of respirator filters, other things being equal, leads to an increase in their protective efficiency, allowing staff, working in respirators, to reduce the energy required for hard work, as well as increase the usage period of respirators or their usage area in terms of air pollution. The experimental results show that the decrease in resistance of dust respirator filters by three times, other things being equal, leads to an almost double increase in their protective efficiency.
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Copyright (c) 2015 Василий Иванович Голинько, Сергей Иванович Чеберячко, Юрий Иванович Чеберячко, Дмитрий Игоревич Радчук
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