방진마스크의 에어졸 방어효과와 밀착정도

• 영문명: Protection against Aerosols by particulate Respirators and Fit Performance
• 발행기관: 한국환경보건학회
• 저자명: 한돈희
• 간행물 정보: 『1. 한국환경보건학회지』제27권 제2호, 30~36쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2001.06.30

영문 초록

This review begins with a brief expression of aerosol capture mechanism of fibrous filter(s) and performance of particulate removing respirators. The more complicated and detailed discussion is not included in this articles. Filtration efficiency and pressure drop are introduced as quality factor ( qF) and the way in which filtration efficiency varies with particle size is discussed. Quality factors fro filters recently certified in USA were found to be very higher than those of filters made in Korea, China and USA filters certified with old certified standards. Electrically charged filters are widely used because they have high filtration efficiency and low pressure drop, but their efficiency decreases sharply at the condition occurring wet and oil mist. A discussion is given of respirator leakage through face seal and filter media with fit testing and total inward leakage testing. Since fit factor (FF) refers to the reciprocal of the fraction of the total air entering a respirator through face seal leakage , the degree of fitting performance for respirators is expected with FF. Because respirators made in Korea had generally lower FFs than respirators made in USA, it is necessary to develope respirators that fit properly for Koreans or establish regulations for fit testing.g.

키워드

Respirator aerosol filtration efficiency pressure drop fit testing total inward leakage testing TIL