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What Is Air Exchange Pressure Difference Tester For Medical Face Mask Testing?

    Medical Face Mask Air Exchange Pressure Difference Tester is a lab testing instrument for determination breathability of medica face masks, the test principle is,  through measuring the differential pressure required to draw air through a measured surface area at a constant air flow rate, to test the air exchange pressure of the medical face mask material, which indicates the breathability of medical face masks, tester complies with EN 149, EN 14683, ASTM F2100, MIL-M-36954C,GB 19083, GB 2626, YY/T 0969-2013 medical face masks testing standards.
     


     Medical Face Mask Air Exchange Pressure Difference Tester meets the standard requirements, which is EN 149, EN 14683, ASTM F2100, MIL-M-36954C,GB 19083, GB 2626"Medical surgical mask technical requirements" and YY 0969-2013 "Disposable medical masks", medical face mask air exchange pressure difference tester is measured by gas pressure difference on both sides of the mask (ie the damping from the mask exert to the airflow) to determine the breathability of the mask, and the instrument test results is accurate.

    The device is used for the determination of gas exchange pressure difference of medical surgical masks and can also be used to determine the gas exchange pressure difference of other textile materials.Built-in water-filled differential manometer is used to measure the differential pressure, a mass flow meter is used for measurement of the airflow. An electric vacuum pump draws air through the medical mask breathability tester and a needle valve is used to adjust the airflow rate.
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