Masks Bacterial Filtration Efficiency Tester TN145-1
Masks Bacterial Filtration Efficiency Tester is used to determine the bacterial filtration efficiency (BFE) of medical face masks, surgical face masks, to identify the protective performance from being exposed to bacterial airborne environments, tester can conduct the tests defined in EN 14683, ASTM F2100, ASTM F2101, YY 0469, YY 0969.
Description
Application
Masks Bacterial Filtration Efficiency Tester is used to determine the bacterial filtration efficiency (BFE) of medical face masks, surgical face masks, to identify the protective performance from being exposed to bacterial airborne environments, tester can conduct the tests defined in EN14683, ASTM F2100, ASTM F2101, YY 0469, YY0969.
The bacterial suspension is pumped to the nebulizer, the aerosol will be pushed into the aerosol chamber then delivered into two sets of (Anderson) sieve samplers, one with testing specimen, another without specimen in order to compare the different results.
Designed with two sets of Anderson sieve samplers it is possible to get the results with and without testing specimen at the same time, reduce the bias to the minimum, and the machine has a embed clear 3-level (disinfection liquid, purified water, airflow) cleaning system to ensure the safety after the tests.
Features of Masks Bacterial Filtration Efficiency Tester
- 10.4-inch high brightness color touch screen, easy to operate.
- With USB interface, supporting USB data transmission.
- With leakage protection switch, the negative pressure test system and the front opening and closing glass door, that can protect operator safety and provide more convenient way for operator to observe.
- Double six stage Anderson sample, compare sampling tests, test result is high accuracy.
- The flow of peristaltic pump and the flow rate of microbial aerosol generator can be set.
- The inner layer of the cabinet is made of stainless steel, and the outer layer is sprayed with cold-rolled sheet, more stable and reliable.
Specifications of Masks Bacterial Filtration Efficiency Tester
| Main parameters | Scope | Resolution | MPE (Maximum Permissible Error) |
| Sample Flow Rate of A | 28.3L/min | 0.1L/min | ±2.5% |
| Sample Flow Rate of B | 28.3L/min | 0.1L/min | ±2.5% |
| Spray flow | (8～10)L/min | 0.1L/min | ±5.0% |
| Peristaltic pump flow | (0.1～3.0)mL/min | 0.1mL/min | ±2.5% |
| Front pressure of flow meter A | (-20～0)kPa | 0.01kPa | ±2.5% |
| Front pressure of flow meter B | (-20～0)kPa | 0.01kPa | ±2.5% |
| Front pressure of front pressure | (0～300)kPa | 0.1kPa | ±2.5% |
| Negative pressure aerosol chamber | (-90～-120)Pa | 0.1Pa | ±2.0% |
| Operation temperature | (0～50)℃ |
| Cabinet negative pressure | (-50～-200)Pa |
| Data storage capability | ＞100000 groups |
| Characteristics of efficiency air high filter | Filter efficiency for particles is above 0.3um ≥ 99.99% |
| Mean mass diameter of aerosol | Average particle diameter is (3.0 ± 0.3)μm, geometric standard deviation ≤ 1.5 |
| Captured particle size of Two-way 6-stage | Ⅰ level > 7 microns, Ⅱ level (4.7 ~ 7) microns, Ⅲ level (3.3 ~ 4.7) microns, Ⅳ level (2.1 ~ 3.3) |
| Anderson sampler | microns, Ⅴ microns (1.1 ~ 2.1), level Ⅵ microns (0.6 ~ 1.1) |
| Aerosol chamber specifications | (length 600× diameter 85× thickness 3) mm |
| Total number of positive quality control sampler particles | (2200±500) CFU/mL |
| Ventilation flow rate of negative pressure cabinet | ≥5m3/min |
| Dimensions of negative pressure cabinet door | (length 1000× width 730) mm |
| Host size | (length 1180× width 650× height 1300) mm |
| Stent size | (length 1180× width 650× height 600) mm, height adjustable within 100mm |
| Power | AC220 V±10%，50 Hz |
| Weight | 250 kg |
| Overall power consumption | ＜1500W |
Standards of Masks Bacterial Filtration Efficiency Tester
| EN 14683 | ASTM F2100 | ASTM F2101 | YY 0469 | YY 0969 |
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