Breathing simulator manikin

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Web: standard-groups.com

Standards

GB/T 14296-2005 — Indoor Air Quality Evaluation Methods (Air Pollutant Exposure)

GB/T 18883-2022 — Indoor Air Quality Standard

ISO 7730:2005 — Ergonomics of the Thermal Environment — Analytical Determination and Interpretation of Thermal Comfort

ASTM F1291-2020 — Test Methods Related to Breathing and Exposure Measurement

Product Specifications

Component	Technical Parameters
Breathing Function	Sinusoidal breathing profile; breathing frequency 10 breaths/min (one cycle 6.0 s: exhalation 2.0 s, inhalation 2.0 s, pause 2.0 s); customizable on request
Exhalation Volume	Adjustable: 7 L/min, 15 L/min, 23 L/min; exhalation positive pressure 10–80 kPa (0.1–0.8 bar); inhalation negative pressure approx. −0.4 bar
Breathing Mode	Switchable nasal breathing or oral breathing (when used with a thermal manikin)
Exhaled Airflow	Equipped with heating module; airflow temperature adjustable from 34 to 36 °C
Sampling Branch	Main breathing line includes a sampling port for aerosol or pollutant sampling
Electrical Control System	Integrated control cabinet with pressure gauges and flow display; power supply AC 220 V / 50 Hz; total power ≤ 350 W; exhaled air heating module power ≤ 1000 W
Operating Environment	Temperature 10–40 °C; humidity 15–95%
Others	Can be used with a thermal manikin or independently with a manikin head; platform with lockable caster wheels; over-pressure and short-circuit protection; total weight approx. 45 kg

Features

Accurate simulation of human breathing cycles and airflow parameters, with support for customized breathing functions;

Adjustable exhalation temperature to ensure experimental conditions are close to real human breathing;

Compatible with a 16-zone thermal manikin to simulate interaction between body heat sources and breathing airflow;

Modular design allowing independent use or localized experiments on specific body parts;

High-sensitivity airflow control components with millisecond-level response, using imported components from Germany;

Comprehensive safety protection, including over-pressure protection, short-circuit protection, and lockable caster wheels.

Accessories

Accessory / Consumable	Specification
Breathing Control Cabinet	Includes PID control, pressure gauges, and flow display modules
Heating Module	Exhaled air heating module with adjustable temperature from 34 to 36 °C
Main Breathing Line	Equipped with sampling branch for aerosol or pollutant sampling devices
Quick-Connect Cables	For connection to thermal manikin or head model, easy installation and removal
Customizable Modules	Nasal or oral breathing interfaces; child or infant manikin compatible modules

Test Principle

The manikin breathing system simulates a sinusoidal human breathing cycle by controlling inhalation and exhalation flow rate, pressure, and temperature. When combined with a thermal manikin, the system generates thermal airflow patterns and air distribution similar to those of the human body. Under controlled experimental conditions, you can collect data on particle concentration, gaseous pollutant distribution, and airflow behavior. These data are used for breathing exposure assessment, airborne disease research, and indoor airflow field analysis.

Operation Instructions

Confirm that the ambient temperature is 10–40 °C and relative humidity is 15–95% before installation;

Ensure power supply is AC 220 V / 50 Hz, with total power ≤ 350 W and exhaled air heating module power ≤ 1000 W;

Connect the breathing system to the thermal manikin using quick-connect interfaces and check cable integrity;

Set breathing parameters such as frequency, volume, inhalation/exhalation timing, and breathing mode, with PID parameters automatically tuned;

Switch between nasal and oral breathing modes during testing as required by the exposure scenario;

When using the sampling branch, ensure aerosol sampling devices are properly connected to avoid air leakage;

After testing, switch off the system, save data, and disconnect all connections.

Test Procedure

Connect the breathing system to the thermal manikin or head model and check all cables and interfaces;

Power on the control system and set breathing parameters and airflow temperature;

Activate the heating module and wait until exhaled air temperature stabilizes;

Select nasal or oral breathing mode according to test requirements;

Start the experiment and record breathing pressure, flow rate, temperature, and particle distribution data in real time;

After completion, shut down the system, disconnect power, and clean sampling ports and pipelines.

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