Kemp P C, Carlsson T, Nickelmann A, Neumeister-Kemp H-G
Bibliographic info:
20th AIVC and Indoor Air 99 Conference "Ventilation and indoor air quality in buildings", Edinburgh, Scotland, 9-13 August 1999

As part of an ongoing investigation on service life of air filtration material, a new type of airfiltration material (multi-layered polymer) was compared with a widely used material todetermine growth or survival of micro-organisms after normal dust loading. Blinding wasperformed by the manufacturer supplying the materials as anonymous A and B. Microorganismswere extracted after 2, 4, 6, and 8 weeks by washing (shake out) and plating thesolution onto agar media, incubated and differentiated. Vital fluorescence microscopy wasalso performed. The results showed a significant difference (P