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[Contrast test using three kinds of air-microorganism samplers LWC-I, CA6 and CA2 in public places].

A sampling experiment was conducted using three kinds of air-samplers, i.e. LWC-1, CA6 and CA2, on bacteria and fungus in the air under the same conditions and at the same time yet in three different public places. The results showed that there was no significant difference in the total number of bacteria and fungus colony forming units in the air in different public places using the above mentioned three air-samplers. In comparison, the LWC-1 air-sampler demonstrated a feature of small size, light weight, simple structure, and little noise, therefore, it was easy in carrying and requires no external power source. Such being the case, the LWC-1 air-sampler was more suitable for monitoring microorganism in the air in public places.