Model: RF4309B


The high-throughput mask breathing resistance tester is used to measure the inhalation resistance and exhalation resistance of the respirator under specified conditions.

Wear the tested sample on the matching head mold in an airtight manner, adjust the ventilation volume to 30L/min and 95L/min, measure and record the maximum inspiratory resistance; then test with a large ventilation volume of 300L/min for 30s, Pressure test the exhalation valve;

The RF4309B tester has a built-in large-flow air pump with adjustable flow rate, two inspiratory and respiratory systems, flow sensors and other respiratory resistance measurement devices; the system can automatically control ventilation and automatically measure breathing and inhalation resistance.


Scope of application: protective half mask, etc.


Applicable standards

EN 149 EN 136



  1. The range of the flowmeter is 0-500L/min, and the accuracy is ±2%;
  2. The micro-pressure measuring range is -1000Pa~1000Pa, the accuracy is 1%, and the resolution is 1Pa;
  3. Air pumping capacity: not less than 400L/min;
  4. Ventilation volume: exhale 25 times/min, 2L/time, or continuous airflow 160L/min; inhalation: 30L/min and 95L/min continuous airflow;


Order Item No. RF4309B High Flux Mask Respiratory Resistance Tester



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