The device for air microbiota concentration of the closed premises

The offered device has significant constructive differences providing possibility of separation and concentration of aerosol particles from air in container with fluid or on the surface of a membrane filter with their subsequent bacteriological examination. This method is simple, reliable and available both in manufacturing and operation. Use of the offered device provides high quality of catching due to vortex rotatory entrance of air flow into the chamber with catching fluid and its barbotaging, deposition of microorganisms under the influence of centrifugal forces and use of the bacterial filter. The results obtained showed higher efficiency level of the device use in the experiments on closed premises atmosphere treatment control for laboratory animals comparing with the data obtained by Kokh, Diakonov methods as well as those received by means of Krotov device.