Mask gas exchange pressure difference tester

Mask ventilation resistance tester

I. Main uses:
It is suitable to determine the difference of the gas exchange pressure difference of medical surgical masks, and can also be used to determine the gas exchange pressure difference of other textile materials.
II. Instrument characteristics:
1. Adopt the suction gas source as the instrument power source, which is not limited by the space of the test site;
2. Equipped with high-precision differential pressure sensor, digital display of the pressure difference on both sides of the sample;
3. Special sample clip to firmly clip the sample.

III. Technical indicators:
1. Gas source: suction type;
2. Air flow rate: 8 L/min;
3. Seal method: end surface sealing;
4. Air permeability diameter of the test sample: 25mm;
5. Difference pressure sensor range: 0~500pa;
6. Display mode: digital display pressure difference;
7. Power supply: 220V, 50Hz.
IV. Applicable Standards:
YY0469-2011 "Medical Surgical Mask"

YY0969-2013 "Disposable Medical Masks"

EN14683:2014 <Medical face masks -Requirements and test methods>