%0 Journal Article %T Air cleaning in livestock buildings by applying the granular filtration layer %A R. Myczko %A T. Ko£¿¡­£¿£¿odziejczyk %J International Agrophysics %D 2008 %I %X The assumptions and results of laboratory research on efficiency of ammonia removal from air by use of the cassette filter in the mechanical ventilation system were presented. A filtration layer consisted of polypropylene (PP) granulate of 5 mm grain diameter, enhanced during production process with NanoSilver concentrated preparation in concentration of 2 000 silver p.p.m. (nanoAg). Reduction factors came to: 45.1 and 51.4 at 16 l min-1 flow rate and 53.2 and 58.9% at 8 l min-1 flow rate for 0.5 and 1 l of granulate content in the layer respectively. %K ammonia %K emission %K emission reduction %K granular filter %U http://www.international-agrophysics.org/artykuly/international_agrophysics/IntAgr_2008_22_3_245.pdf