Bacterial Filtration Efficiency Tester is used to test the filtration efficiency of filter materials such as masks or protective clothing for bacterial particles under certain environmental conditions.

The Bacterial Filtration Efficiency Tester, which delivers the bacterial suspension via a nebulizer to the sampler, collects the bacterial aerosol onto tryptic soy agar. The agar plates were incubated at a certain temperature for a certain period of time, then the colony-forming units formed by the bacterial particle aerosol were counted and converted to the number of possible impact particles using a conversion table. The converted value is used to determine the average level of bacterial particle aerosol delivered to the test sample.

RF4317 Bacterial Filtration Efficiency Tester, including vacuum pump, peristaltic pump, sprayer, two-way six-stage Andersen collision sampler, etc.

Specifications:

1. The spray flow of the special microbial aerosol generator can be set;

2. Built-in two-way six-level Andersen collision sampler, level I>7μm, level II (4.7～7)μm, level III (3.3～4.7)μm, level IV (2.1～3.3)μm, level V ( 1.1～2.1)μm, VI grade (0.6～1.1)μm;

3. Sampler flow: 28.3L/min

4. The flow rate of the built-in peristaltic pump can be set;

5. Built-in clean air source;

6. Built-in high-efficiency filter, the filtration efficiency of particles above 0.3um is ≥99.99%;