MACCHINA DEPURATRICE PER LA PURIFICAZIONE DELL'ARIA INTERNA DI ABITAZIONI,NEGOZI,UFFICI,NONCHE' PER AUTOVEICOLI,AUTOBUS TRAM, METROPOLITANA,ECC.

摘要

Filtering machine consisting of: prefilter, filter with activated carbon of high efficiency (HECA), absolute filter with high efficiency (HEPA). Upstream and downstream of the series of filter batteries two isokinetic probes are installed, if necessary, according to the use, to permit testing of the filtering machine. The testing method prescribed is that of DOP (dioctyl phthalate) for the prefilter and absolute filter and the freon method for the activated carbon filter.