Device and method for collecting airborne microorganisms

摘要

The present invention provides an impaction-based microorganism collecting device in which microorganisms are captured by the capture surface of a collection plate. The microorganism collecting device is designed to reduce the influence of the lateral wind flowing over the perforated plate having multiple nozzles and also prevent warpage of the perforated plate.;Multiple air vents are formed around the circumference of the capture surface and through the capture surface so that air that has flowed through the nozzles of the perforated plate onto the capture surface can be discharged. This allows the air to flow in multiple directions over the capture surface, thereby reducing the speed of the air and increasing the microorganism capture rate.

主权项

1. A microorganism collecting device comprising:
a perforated plate having a plurality of nozzles that allow passage of air containing microorganisms; a collection plate facing the plurality of nozzles and having a capture surface for capturing the microorganisms; a collection plate holder for holding the collection plate; a fan for allowing the air to flow from the perforated plate toward the collection plate; a housing for holding the perforated plate, the collection plate holder, and the fan; and an air vent located in a space between the housing and circumferentially outer sections of the collection plate and the collection plate holder, wherein the device further has a second air vent formed at circumferentially inner sections of the collection plate and the collection plate holder, wherein ring-shaped convex portions are placed on the collection plate such that the convex portions are directly below the nozzles, wherein the top surfaces of the convex portions act as capture surfaces of the collection plate, and wherein the spaces between the convex portions communicate with the air vents.