BFEæ¯è±æBacterical Filtration Efficiencyçç®ç§°(ç´è¯å°±æ¯ç»èè¿æ»¤æç)ã
PFE99éç¨çæ¯é«èæç
èä¸ç¯åæã bfeâ¥99æ¯å»ç¨å£ç½©ãbfeâ¥99æç»èè¿æ»¤è½è¾¾å°99%以ä¸ï¼èBFE大äº95%ï¼å³è¾¾å°äºå»ç¨çº§å«ï¼ç¬¦åä¸æ¬¡æ§ä½¿ç¨å»ç¨å£ç½©çæ åï¼æ以bfeâ¥99å£ç½©ä¹å±äºå»ç¨å£ç½©ã æ¥å¸¸ä½¿ç¨æ¯å¯ä»¥çã
å£ç½©bfe95æ åæ¯è½éè¿æ£æµç©çèè½å°äº5%ï¼è¿æ»¤æçè¾¾å°95%以ä¸ã
ä»ææ æ¯è¾çï¼å£ç½©bfeâ¥99æ´å¥½ã