FIELD: chemistry; biochemistry.
SUBSTANCE: invention relates to hygiene and sanitation. The device has a cone-shaped container with a cover a block of filters fitted in the top part of the container. The filters in the block are detachable and lie at a defined distance from each other in proportion to reduction in size of pores from the bottom upwards. An air inlet hole with a small diametre is made in the middle part of the container at an acute angle to the vertical axis of the container. The device also has a detachable nozzle with a cover and an auxiliary filter fitted using a sealing ring and a cover.
EFFECT: more efficient determination of the number of microorganisms in air inside a room.
1 dwg
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