Medical Mask Differential Pressure Tester
Applications
Medical Mask Differential Pressure Tester or medical face mask
breathability 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.
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.
Medical face masks differential tester complies with standards like
EN 149, EN 14683, ASTM F2100, MIL-M-36954C, GB 19083, GB 2626, YY/T
0969-2013.
Specifications
Test time: Adjustable
Air source: Air compressor
Test airflow: (8 ± 0.2) L / min
Power: AC 220 V 50 Hz 1 Kw
Manometer range: 0 ～ 500 Pa
Sealing type: O-shaped ring seal
The internal diameter of the top holder and the bottom holder in
the contact area with specimen: Φ25 mm
Standards
EN 149, EN 14683, ASTM F2100, MIL-M-36954C,GB 19083, GB 2626, YY/T
0969-2013
