Dual sampling technology: efficient monitoring solution for microbial aerosol concentrator

The detection of microbial aerosols is of great significance in preventing the spread of respiratory diseases in the fields of public health, hospital infection control, and environmental monitoring. As a key equipment for efficient collection of microorganisms in the air, the performance of microbial aerosol concentrator directly affects the accuracy and reliability of detection results.

The Industry Significance of Microbial Aerosol Detection

1. Health hazards of microbial aerosols

Spread respiratory infectious diseases

Causing hospital acquired infections

Triggering allergic reactions and asthma

2. Limitations of traditional sampling methods

Low sampling efficiency, difficult to capture small particles

Long term sampling leads to loss of biological activity

Unable to meet the demand for rapid on-site testing

Complex operation and high professional requirements

3. Industry testing demand upgrade

Modern microbial monitoring requires:

✓ Efficient concentration and collection

✓ Maintain microbial activity

✓ Quick on-site inspection

✓ Standardized operating procedures

Working principle of microbial aerosol concentrator

1. Core technical principles

Design based on Anderson impact principle

Main gas path (12-120L/min) pre concentration

Fine collection of concentrated gas path (1.5-15L/min)

Graded cutting of particles of different sizes

2. Instrument workflow

(1) Equipment installation: Adjust the height of the sampling head (3-4 meters)

(2) Parameter settings: Set flow rate and sampling time

(3) Sample collection: dual channel simultaneous operation

(4) Sample recovery: transfer to analytical medium

(5) Data analysis: laboratory cultivation and identification

3. Key system components

Impact system: specially designed impact plate and receiving plate

Flow control system: dual adjustable flow (± 5% accuracy)

Support system: adjustable gimbal

Supporting system: SKC liquid impact sampler from the United States

Technical advantages of microbial aerosol concentrator

1. Collection performance

Capture efficiency:>90% (particles larger than 3 μ m)

Cutting particle size: 0.43-1.1 μ m (flow rate adjustable)

Dual channel simultaneous acquisition

High flow rapid concentration

2. Convenient operation

Manual flow adjustment

Timer function (1s-99h59m59s)

Meets multiple industry standards

3. Professional support

12.5L/min high flow collection

8-hour continuous sampling capability

Special nozzle design to maintain biological activity

Industry application scenarios and solutions

1. Main application areas

Public Health: Monitoring of Central Air Conditioning Systems

Medical Institution: Hospital Infection Control

Industrial production: cleanroom validation

Environmental Protection: Air Quality Assessment

Research Institute: Microbial Aerosol Research

2. Typical problems and solutions

Difficulty in capturing small particles: graded cutting (starting from 0.43 μ m)

Low sampling efficiency: high flow concentration (120L/min)

Biological activity loss: rapid collection reduces exposure time

Difficulty in high-altitude sampling: adjustable pan tilt zoom

Standard compliance: Complies with standards such as GB/T 18204.5

Microbial aerosol concentrator, as a key equipment for modern environmental microbial monitoring, has the characteristics of efficient concentration and precise cutting, which effectively improve the efficiency of biological aerosol sampling. Choosing a reliable microbial aerosol concentrator can not only improve monitoring efficiency and data quality, but also provide strong guarantees for public health safety and hospital infection control.