The HD-Biai100 online monitoring instrument for air microorganisms can monitor and analyze the air quality in public places, indoors, and the environment. It can also provide early warning for harmful biological aerosols and is an important equipment for detecting and disposing of biological pollution. Its main application areas include port inspection and quarantine, sterile workshop monitoring, security and protection of important departments and major events, biological warning, etc.
Technical Specifications:
1、 Working principle
The instrument consists of a particle cutter, a laser particle counter, a UV induced fluorescence detector, etc
Laser induced bioluminescence detection technology (LIF) was used to detect nuclear lutein and other microorganisms.

2、 Performance indicators
1.1 Principle: Capture particles using the Archimedes' diffuse scattering principle and measure their size; Using the fluorescence emitted by the metabolic products inside bacterial cells to identify bacteria; Each particle can be measured individually.
1.2 Particle size range: 0.5~24 μ m.
1.3 Detection of planktonic bacteria: Laser induced fluorescence activity of planktonic bacteria particles is used for detection.
1.4 Minimum resolution: better than or equal to 1 microbial particle.
1.5 Sampling flow rate: ≥ 2L/min.
1.6 Excitation light source: 405nm semiconductor laser.
1.7 Maximum detection concentration: not less than 6000 microbial particles per second.
1.8 Detection cycle: default 1 minute, adjustable within 0-60 seconds.
1.9 Instrument size: 250mm × 230mm × 200mm (excluding accessories such as handles and nozzles).
3、 Instrument interface and interface
Front of the instrument

Back of the instrument


Instrument interface

4、 Application scenarios
GB 37488-2019 "Requirements for hygiene indicators and limits in public places"


GB/T 16293-2010 Test Method for Floating Bacteria in Cleanrooms (Areas) of the Pharmaceutical Industry

Application scenarios for airport air environment monitoring:
1. Plot the trend curve of air pollution in the airport waiting hall:
Adopting hyperbolic concentration of dust particles and fluorescent particles (continuous monitoring mode)
2. Air quality monitoring and intervention warning of centralized air conditioning supply system
Adopt regular sampling and warning mode (intervention threshold needs to be set, reference 1000 per cubic meter)
3. Biological alarms in the airport immigration hall
Adopting regular sampling and warning mode (alarm threshold needs to be set, referring to the 6th power of 10 per cubic meter)
Due to the continuous updates and upgrades of Huaduan Biotechnology products, if there are any changes in appearance, structure, performance, or parameters, please consult our company for confirmation. Our company can also customize products according to customer needs. Welcome to inquire.