Shenzhen Xiangnan High Tech Purification Equipment Co., Ltd
Shenzhen Xiangnan High Tech Purification Equipment Co., Ltd Customized HEPA filter, Fan Filter Unit, Clean Room Equipments ,Air Showers
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HV HEPA Filter for Hospital Operating Room Laminar High Air Flow
Specifications
Metal frame, stainless steel 304, 201, galvanized steel, plastic ABS ( flammable );
Glass fiber media, HV glass fiber paper;
Efficiency range: 99.9%, 99.99%, 99.999% @ 0.3 um;
Gasket: EVA neoprene;
Sealant: polyurethane;
Temperature: 80℃;
Humidity: 100%;
Initial pressure drop: 250Pa;
Final pressure drop: 600Pa;
V cell design make full use of the space to creat large air filte area;
The objective of HEAP filter leakage test;
In fact, HEPA filters should be tested by manufacturer and show report & mill certification;
For pharmaceutical industries, the leakage test in happened after the HEPA filters already been installed. The main test project includes filter media completeness, air tight between air filter frames and hold case, air tight of gasket. For any leakage appear, immediate fix is necessary to maintain cleanroom cleanliness level;
Methods for HEPA filter leakage test;
Normally, HEPA filters tested by DOP; PAO generator produce small aerosol in the upstream of HEPA filters; Because there are no enough particle in the HEPA filter upstream, leakage test in downstream always be hard to identify;
PAO generator can create many small aerosol particles that make leakage be apparently, so it`s easily to identify.
MPPS test from 0.1-0.4 micron also be available;
