title: [Studies of the problem of air filtration].
mesh_terms: D000389:Air Conditioning; D000391:Air Microbiology; D001412:Bacillus subtilis / Q000302:isolation & purification; D001419:Bacteria / Q000254:growth & development / Q000302:isolation & purification; D002452:Cell Count; D005069:Evaluation Studies as Topic; D005374:Filtration / Q000592:standards; D005658:Fungi / Q000254:growth & development / Q000302:isolation & purification; D006813:Humidity; D010407:Penicillium / Q000302:isolation & purification; D013045:Species Specificity; D013696:Temperature
vernacular_title: Untersuchungen zur Luftfiltration