1. Equipped with a high-power ventilator, it can provide an exhalation or inhalation gas flow rate of no less than 160L/min;
2. Equipped with a high-precision flow sensor to measure the gas flow rate, with a range of 0 to 200L/min and an accuracy of 3%;
3. Equipped with a high-precision micro-pressure sensor to measure the respiratory resistance, with a range of -1000Pa to +1000Pa and an accuracy of ±1Pa;
4. Equipped with a standard head model, with a breathing tube installed at the mouth of the head model, facilitating the replacement of samples;
5. Uses an LCD display to show the flow rate and pressure in real time, and the parameters and alarm points can be set;
6. The electric directional valve can automatically switch between exhalation and inhalation and has an indicator light for indication;
7. Power supply: 220V, 50Hz.
Complies with standards: BS EN 136-1998 Respiratory protective devices - Full face masks - Requirements, testing, marking
LFY-711A Respiratory Resistance Tester
