TH281XL Particle Filtration Efficiency Tester

【 Scope of Application 】 Suitable for rapid, accurate, and stable detection of particulate matter filtration efficiency of various medical and daily protective masks, respirators, etc.

【 Related Standards 】

GB/T 19083-2010 Technical Requirements for Medical Protective Masks 5.4 Filtration Efficiency

YY/T 0469-2011 Medical Surgical Masks 5.6.2 Particle Filtration Efficiency

GB/T 32610-2016 Technical Specification for Daily Protective Masks Appendix A Filtration Efficiency Test Method

GB 2626-2019 Respiratory Protection Self priming Filter Anti particle Respirator 6.3 Filtration Efficiency

GB 19082-2009 Technical Requirements for Medical Disposable Protective Clothing 5.7 Filtration Efficiency

EN 1822-3:2012 EN 149-2001

EN 14683:2005 IEST-RP-CC021.1 NIOSH 42 CFR Part 84 etc.

1. Efficiency testing: Using American TSI high-precision photometer to detect upstream and downstream particle concentrations, ensuring accurate and stable sampling;

2. Flow detection: The system testing flow is mainly provided by dry and clean compressed air from the outside. Internally, there is a voltage and current stabilizing device installed to ensure the stability of the detected flow rate, and an automatic control system is used for simplicity, speed, and stability.

3. Aerosol occurrence: Adopting Collision multi nozzle design, salt and oil testing can be conducted on the same instrument to ensure rapid and stable adjustment of aerosol concentration (frequent replacement of aerosol particles is not recommended for longer maintenance cycles);

4. Test results; Equipped with a 7-inch touch screen display, the detection results are directly displayed on the interface, and users can choose to directly or save data;

5. Data Port: External storage card, capable of exporting data without worrying about data loss;

6. Resistance detection: The resistance pressure difference of the filter material will be obtained through the static pressure rings of its upstream and downstream testing chambers, and high-precision imported brand pressure difference transmitters will be used to ensure the accuracy and stability of the pressure difference;

7. Data Port: External storage card, capable of exporting data without worrying about data loss;

8. Easy to operate: Users only need to place the sample in the fixture, press the button, adjust the test flow rate, and the system will automatically test the resistance and efficiency through the controller. The entire process is simple, fast, and efficient.

1. Test flow range: 15L/min~100L/min, accuracy 2%
2. The cross-sectional area through which the airflow passes is 100cm ² (optional N95 mask fixture)

3. Resistance test range: 0~1000Pa, accuracy can reach 0.1Pa
4. Filter efficiency test range: 0~99.999%, resolution 0.001%
5. Test particle size: 0.3um
6. Aerosol:

Sodium chloride (recommended), concentration: saline 10mg/m3~35mg/m3;

DOP, PSL, and DEHP (with a median diameter of 0.185 ± 0.020 µ m and a geometric deviation of no more than 1.60),

Concentration of 50~200mg/m3)

7. Aerosol concentration: 1 microgram/cubic meter to 200 milligrams/cubic meter
8. Fog dust source: NaC1 (recommended), DEHS, etc
9. Test time: Resistance is tested separately for 5 seconds, while efficiency and resistance are tested simultaneously for 70 seconds

10. Structural composition: particle generator, flow detection device, concentration detection device

11. Sample quantity: 1 route

12. Working gas source: ≥ 0.5MPa, 200L/min

11. Power supply: 220V, 50Hz, 1KW
12. Dimensions: (700mm x 700mm x 1600mm) (length x width x height)
13. Weight: Approximately 100kg