Filter Efficiency of Commercial Face Masks of Particles and Airborne Bacteria

Autor:	Tohru Obara, Chuhei Yamauchi, Korebumi Minakami
Rok vydání:	1986
Předmět:	Materials science General Veterinary business.industry General Medicine General Biochemistry Genetics and Molecular Biology law.invention Face masks Filter (video) law Optoelectronics Animal Science and Zoology business Filtration Animal facility
Zdroj:	Experimental Animals. 35:293-297
ISSN:	1881-7122 0007-5124
DOI:	10.1538/expanim1978.35.3_293
Popis:	The filter efficiency of seven kinds of commercial face mask for particles and airborne bacteria was tested in the wash room of a laboratory animal facility. The filter efficiency of the masks was 19 to 50%, as measured by the weight of particles with diameters below 10 micron, 22 to 71% for particles of the 0.3 micron level, 47 to 90% for the 1 micron level, and 90 to 99.6% for the 5 micron level. The filter efficiency for airborne bacteria was 35 to 81%. Among these even masks tested, glasswool surgery masks, three-sheet synthetic fiber masks with and without charcoal, and 28-sheet gauze masks with glass filter showed generally high efficiency, and single-sheet synthetic fiber masks, 18-sheet of gauze masks and gas masks showed low efficiency.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::124e4e7ab8d1a1e02ab3869009b6ac8b https://doi.org/10.1538/expanim1978.35.3_293 Zobrazit plný text záznamu