LFY-709 Medical mask ventilation resistance tester
The main purpose
It is suitable for the measurement 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.
Instrument characteristics
1. The suction air source is used as the power source of the instrument, which is not restricted by the space of the test site;
2. Equipped with a high-precision differential pressure sensor, which digitally displays the differential pressure on both sides of the sample;
3. The special sample holder ensures that the sample is firmly clamped.
Technical index
1. Air source: suction type;
2. Air flow: 8L/min;
3. Sealing method: end face sealing;
4. The breathable diameter of the sample: Ф25mm;
5. Range of differential pressure sensor: 0～500Pa;
6. Display mode: digital display pressure difference;
7. Power supply: 220V, 50Hz.
Applicable standards
YY 0469-2011 Medical surgical mask
YY 0969-2013 disposable medical mask