A brief introduction to the particle protection effect detector of masks

The mask particle protection effect tester is used to detect the protection effect of masks on particles. By detecting the concentration of aerosol particles in the environmental chamber and the mask, the protective effect of the mask is calculated. Test standard GB/T 32610-2016 Technical Specifications for Daily Protective Masks 6.14 Protection Effect Appendix B Test method for particulate protection effect, GB/T 38880-2020 Technical Specifications for Children's Masks and other standards.

standard test

GB/T 32610-2016 Technical Specifications for Daily Protective Masks 6.14 Protection Effect Appendix B Test method for particle protection effect,

GB∕T 38880-2020 Technical Specifications for Children's Masks and other standards.

Features:

1. Adopt TSI photometer sensor to ensure accurate, stable, fast and effective sampling.

2. The system test flow is mainly provided with dry and clean compressed air from the outside, and the automatic control system is simple, fast and stable.

3. The standard aerosol generator design can test salt and oily particulate matter on the same instrument to ensure fast and stable adjustment of the fog concentration.

4. It can be added with GB∕T 38880-2020 children's mask test sports silicone head mold.

5. Equipped with artificial respiration simulator, expiratory volume and respiratory rate can be set arbitrarily.

Product Specifications

1. The size of the protective effect test chamber is about (length × width × height): 600mm × 600mm × 560mm;

2. Test medium NaCl particles;

2.1. The initial concentration of the effective space of the test chamber: (20-30) mg/m3, and the change during the test process is not more than 10%;

2.2. Aerodynamic particle size distribution of particles: (0.02～2) μm;

2.3. Mass median diameter: 0.6μm;

3. Test medium: corn oil particles;

3.1. The initial concentration of the effective space of the test chamber: (20 ~ 30) mg/m3, and the change during the test process is not more than 10%;

3.2. Aerodynamic particle size distribution of particles: (0.02～2) μm;

3.3. Mass median diameter: 0.3μm;

4. Photometer sensor;

4.1. Gas collection flow: (1~2) L/min;

4.2. Detection frequency: 60 times/min;

4.3. Measuring range and accuracy of particle concentration: (0.001～100) mg/m3, accuracy 1%;

4.4. The inhalation gas sampling tube is in the nostril;

4.5. The position of the ambient air sampling tube is 2cm away from the mouth and nose of the mask;

5. Matching head mold: one standard head mold (medium size);

6. Breathing simulator:

6.1. Sinusoidal airflow;

6.2. Respiratory rate: 20 times/min;

6.3. Respiratory flow: (0～30) L/min;

7. Power requirements: 220V, 50Hz, 1KW;

8. Air source requirements: 0.5MPa, 120L/Min;

9. Dimensions (length mm × width mm × height mm): 820 × 840 × 1650;

10. Weight: 100 Kg.