Application: Applications: Bedside lung function testing, intubation patient ventilation testing, and COPD screening.

Features: Set multiple functions into one, with the advantages of portability, accuracy, fast inspection and visibility;
Fully automatic analysis of more than 20 data parameters;
Intelligent assistant clinical diagnosis analysis;
Automatic calibration of digital high-precision sensing;
Graphical display of V-V curve with high definition data;

Breath test
Inhalation test: Hold the breath filter in your mouth, exhale slowly, retract your abdomen, empty the lungs as much as possible, and then inhale as quickly and strongly as possible until the air fills the lungs and the belly bulges.
Exhalation test: Hold the breath filter in your mouth, inhale slowly, swell the abdomen, fill the lungs with gas as much as possible, and exhale as fast and hard as possible until the air in the lungs is cleared and the abdomen is adducted.