Mask filter material filtration efficiency resistance test

Main purpose:
The mask filtration efficiency testing device is used to test the protective effect and filtration efficiency of daily protective masks and respirators against particulate matter. Used for testing the filtration efficiency of particulate matter in daily protective masks, medical masks, and respirators. Applicable to medical device inspection centers, safety protection inspection centers, labor protection inspection centers, drug inspection centers, * * prevention and control centers, textile testing centers, hospitals, mask and respirator production enterprises, etc.

Application scope:
Applicable to medical device inspection centers, safety protection inspection centers, labor protection inspection centers, and drug testing centers Inspection center, * * prevention and control center, hospital, mask and respirator production enterprises, etc.

Applicable standards:
GB 32610-2016 Technical Specification for Daily Protective Masks
GB 2626-2006 Respiratory protective equipment - Self priming filter particle respirator
GB 19082-2009 Technical Requirements for Medical Disposable Protective Clothing
GB 19083-2010 Technical Requirements for Medical Protective Masks
YY 0469-2011 Medical Surgical Masks
Technical parameters:
1. The use of a cold gas aerosol generator produces continuous and stable aerosol particles, making it convenient to add the solution.

2. Using high-precision laser sensors to measure aerosol concentration.

3. Full process particle leakage prevention design to protect the safety of experimental personnel.

4. Two sets of aerosol generators: salt particle aerosol generator and oil particle aerosol generator.

5. Equipped with an aerosol particle electrostatic charge neutralization device.

6. Pneumatic fixture with protective device, safe and convenient to use.

7. Configure temperature and humidity sensors to display real-time environmental temperature and humidity (temperature and humidity requirements: 25 ℃± 5 ℃, 30% RH ± 10% RH).

8. Configure precision flow meters, vacuum pumps, and laser dust particle counters.

9. Filter efficiency detection range: 0-99.999%.

10. Filter efficiency detection flowmeter range (10-100) L/min, accuracy level 2.5.

11. Filtering efficiency sampling frequency: 1-9999 times/min can be set arbitrarily.

13. Instrument accuracy level (precision level): Level 1

14. Control system: A user-friendly human-machine interface controls the testing process and automatically collects data.

15. The system automatically tests gas concentration and calculates filtration efficiency; Can save, output, query, and print test data.

16. Power supply: AC220V 50Hz