N. 61 - Choose and comparation of samplers

Active Microbial Air Sampler idea The portable active microbial air sampler collects a pre-determined volume of air that impacts against agar-based growth culture medium contained in a Petri dish or contact plate. The aspiration is produced by a motor-fan. The plate is then incubated at appropriate temperature and the number of colonies (Colony Forming Unit = CFU) per plate are typically reported to 1.000 litres of air.