Manikin Breathing System

Application

HVAC education and research, including indoor air quality evaluation, human breathing exposure assessment in confined spaces, and cross-infection risk analysis of airborne diseases;

Medical and public health research, including studies on respiratory exposure, pollutant dispersion, and effectiveness of protective measures;

Occupational health assessment, such as evaluation of dust, PM2.5. and gaseous pollutant exposure in workshops and factories;

Breathing exposure assessment in aerospace cabins and confined environments, including civil and military aircraft, helicopters, space stations, re-entry capsules, submarines, and deep-sea systems;

Breathing exposure assessment inside vehicles and transportation systems, including buses, passenger cars, new energy vehicles, high-speed trains, subways, ships, and submarines;

Evaluation of breathing exposure and comfort of wearable masks, including space suits, pilot oxygen masks, aircraft passenger oxygen masks, and chemical protective mask systems.

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.

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