GB 19083-2010 Technical requirements for medical protective masks；
YY 0469-2011 Medical surgical mask；
GB 2626-2006 Respiratory protective equipment self-absorption filter respirator against particulate matter；
GB/T 32610-2016 Technical specifications for daily protective masks.
1. Suction type air source is adopted as the instrument power source, which is not limited by the space of the test site;
2. Equipped with high-precision pressure difference sensor, digital display of the pressure difference on both sides of the sample;
3. The special sample clamp ensures firm clamping of the sample.
1. Air source: suction type;
2. Air flow: 8L/min;
3. Sealing method: O-ring seal;
4, sample breathable aperture: Ф 25 mm;
5. Pressure difference sensor range: 0 ~ 500pa;
6. Display mode: digital display pressure difference;
7. Power supply: 220V, 50Hz.