Face Mask Gas Exchange Pressure Difference Detector

A. Overview

The face mask gas exchange pressure difference detector is based on the standard YY0469-2011: "surgical mask". The detector uses a pressure difference sensor to test the pressure difference between the internal pressure and the external pressure of the test sample. The detector is equipped with a specialized fixture to achieve the air tightness. It is mainly used for the measurement of the gas exchange pressure difference of surgical masks or mask fabrics, and can also be used to determine the gas exchange pressure difference of other textile materials.

B. Testing Principles:

A vacuum pump is implemented to imitate the power source of the testing. Using fixtures to test the internal and external pressure of face masks by a built-in sensor. The all-in-one chassis adopts a built-in vacuum pump and digital display meter to achieve automatic pressure detection and display.

C. Technical Parameters

1.     Test Power Source: Vacuum Pump

2.     Air Flow: 8L/min

3.     Temperature: Room Temperature

4.     Sensor Accuracy: 0.5%, Maximum Pressure: 20kpa

5.     Weight: 25kg

6.     Sealing Method: O-ring seal

7.     Test Sample Exposure Diameter: Ф25.4mm

8.     Differential Pressure Sensor Range: 0～500pa  

9.     Display Method: Digital

10. Power Supply: 220V, 50Hz