Microbial aerosol concentrator

Product overview

The microbial aerosol concentrator is developed based on the Anderson impact principle. It consists of two parts: the impact chamber and the collection chamber. The impact chamber is composed of an impact plate and a receiving plate.

This product meets the requirements of the standard "GB/T 18204.5-2013 Hygienic Inspection Methods for Public Places - Part 5: Central Air Conditioning and Ventilation Systems" and the hygiene industry standard "WS 394-2012 Hygienic Standards for Central Air Conditioning and Ventilation Systems in Public Places". It collects air from central air conditioning systems and tests for Legionella pneumophila. The large collection flow rate allows the required particles to be concentrated in the sampler in a short period of time, avoiding the loss of biological activity caused by long-term sampling and improving the practicality of the sampler on-site.

Main technical indicators

The main gas flow rate is adjustable within the range of (12~120) L/min, with an allowable error of ±5%;

The flow rate of the concentrated gas circuit is adjustable within the range of (1.5~15) L/min, with an allowable error of ±5%;

The repeatability error of the main gas path flow rate and the concentrated gas path flow rate is ±2%

The collection efficiency for biological particles larger than 3um is greater than 90%.

At an airflow of 100L/min, the cutting particle size is Da50=1.1μm,

The cutting particle size is Da50=0.65μm when the air flow rate is 150L/min

The cutting particle size is Da50=0.43μm when the air flow rate is 200L/min.

Timing function: 1 second - 99 hours, 59 minutes, 59 seconds

l Dual-channel simultaneous acquisition

Manual flow adjustment

Equipped with a liftable gimbal, the sampling head can be adjusted to a height of 3 meters (or 4 meters as an option) according to the on-site situation

High-end accessories:

American SKC liquid impactor microbial aerosol sampler

Technical Parameter

The specially designed high-efficiency glass impact bottle capture device requires a high-flow sonic air sampling pump to capture airborne microorganisms (such as bacteria, fungi, pollen, viruses) and their byproducts, such as endotoxins, mycotoxins, and other debris, for further analysis.

The liquid impactor microbial aerosol sampler features three nozzle heads with tangent curvature, equipped with decisive or sonic flow orifices, each allowing 4.2 liters/minute of air to pass through, collectively contributing to a flow rate of approximately 12.5 liters/minute. It allows for effective capture of total or viable biological aerosols for over 8 hours.

Configuration List

Host computer: One unit

External pump One

Timer: One

Tripod (2 meters) - one

Tripod (3 meters) - one

Instrument case: two

Connecting tubes: Four pieces

Concentrator: One unit

Tripod head one

Tray: one

Warranty card and certificate of conformity: one

Instruction manual: one copy