title: Methods for testing the ability of cage filtering materials to exclude air-borne microorganisms.
mesh_terms: D000391:Air Microbiology; D000818:Animals; D000830:Animals, Laboratory; D001419:Bacteria / Q000302:isolation & purification; D005374:Filtration; D005658:Fungi / Q000302:isolation & purification; D014776:Virus Cultivation; D014780:Viruses / Q000302:isolation & purification