Liquid Impact Microbial Aerosol Sampler

Liquid Impaction Microbial Aerosol Sampler (also known as: Liquid Impaction Sampler) is constructed entirely of glass, comprising a sampling bottle, inlet elbow, nozzle, and controller.

The structure features a 90-degree curved inlet tube and an outer bottle containing the sampling liquid. The upper bend of the inlet tube simulates the upper respiratory tract's interception of aerosol particles. At the tube's end is a micro-orifice nozzle where airflow accelerates to near sonic velocity. This jet stream propels airborne microbial particles into the liquid sampling medium, where they are captured by the liquid's adhesive properties.

The liquid impaction microbial aerosol sampler is particularly suitable for concentration measurements in experimental air microbiology. It is commonly used for aerosol sampling in experiments such as: - Dosing for microbial aerosol animal infections - Recovery rates of surviving microbial aerosols - Research on aerosol tracers - Dosing for human aerosol immunizations - Efficacy testing of air disinfectants and sterilizers - Retention efficiency of filter media and filters.

• Suitable for sampling high-concentration microbial aerosols, allowing collected samples to be diluted for accurate determination of airborne microbial particle concentrations.

• The sampler is made of glass, featuring a simple structure, low cost, ease of use, and simple sterilization, making it reusable.

• Collected samples can be analyzed separately. Samples can be divided into multiple portions and tested using several methods simultaneously to achieve various experimental objectives. Additionally, a portion of the sampling solution can be stored in a refrigerator for repeat testing and further analysis.

• During sampling, airflow impact and agitation of the sampling solution release multiple microorganisms from clusters, distributing them uniformly throughout the solution. This enables accurate measurement of airborne microbial counts after subsequent biological culture.

• High capture efficiency, particularly sensitive to small aerosol particles, capable of capturing particles as small as 0.5μm.

• The sampling solution provides protective properties, enabling collection of fragile microorganisms such as viruses and rickettsiae.